Revisit Colditz Castle, a Nazi fortress where breakouts featured human catapults and clever disguises; meet the pilots who staged the famed Great Escape from a Polish stalag; see how 32 POWs pulled off the Warburg Wire Job in just one minute.

The most-produced bomber in US history, used during World War II by every branch of the American military, as well as by the Royal Air Force.

Uncover the sinister ways that dictators convince their followers to worship them as heroes; watch how they weave mythical narratives around their abilities, selling themselves as saviors who should hold absolute power over the people.

When a body is discovered in a bombed-out London church, investigators race to determine if it was caused by the Nazi Blitz or a local killer.

Revisit Colditz Castle, a Nazi fortress where breakouts featured human catapults and clever disguises; meet the pilots who staged the famed Great Escape from a Polish stalag; see how 32 POWs pulled off the Warburg Wire Job in just one minute.

The most-produced bomber in US history, used during World War II by every branch of the American military, as well as by the Royal Air Force.

Uncover the sinister ways that dictators convince their followers to worship them as heroes; watch how they weave mythical narratives around their abilities, selling themselves as saviors who should hold absolute power over the people.

A fleet of spacecraft orbits, and sometimes lands on the surface of, Mars.

Jupiter, Saturn, Uranus and Neptune all have exotic atmospheres, liquid interiors and rings.

A journey on Scotland's River Spey, traveling from its source in the Highlands, winding by boat through the mountains to where the river meets the North Sea.

Strange aquatic mammals populating a river in Columbia; a ship marooned in a sea of sand along Namibia's notorious Skeleton Coast; a Boeing 727 jetliner hidden in a pine forest; an unusual pattern is discovered in the Nevada desert.

A fleet of spacecraft orbits, and sometimes lands on the surface of, Mars.

Jupiter, Saturn, Uranus and Neptune all have exotic atmospheres, liquid interiors and rings.

A journey along the geological marvel that is the Bay of Fundy coastline.

Strange aquatic mammals populating a river in Columbia; a ship marooned in a sea of sand along Namibia's notorious Skeleton Coast; a Boeing 727 jetliner hidden in a pine forest; an unusual pattern is discovered in the Nevada desert.

Salvor and treasure seeker Phil Risko sets out to retrieve valuable 80-year-old hardwood logs from the bottom of the sea; a multi-million dollar cruise vessel undergoes emergency repairs in Panama.

By the spring of 1945, the United States begins to take back the Philippines; on Borneo, the Australians invade Labuan; when the United States invades Okinawa, Japan makes a strong stand and launches the biggest kamikaze attacks of the war.

President Harry Truman decides to drop the atomic bomb on Hiroshima and Nagasaki; Emperor Hirohito surrenders, and Gen. Douglas MacArthur arrives to oversee the country's occupation; mortal enemies must now become partners in Japan's rebirth.

A look at life in the Pacific before, during, and after the attack on Pearl Harbor, presented through home movies and combat footage.

Months after the Pearl Harbor attack, shock waves reverberate in every corner of the Pacific; Americans deploy to stem the enemy's advance; after culture clashes, Allied forces later bond over efforts to thwart Japan's move to control New Guinea.

Revisit Colditz Castle, a Nazi fortress where breakouts featured human catapults and clever disguises; meet the pilots who staged the famed Great Escape from a Polish stalag; see how 32 POWs pulled off the Warburg Wire Job in just one minute.

The most-produced bomber in US history, used during World War II by every branch of the American military, as well as by the Royal Air Force.

Tease out the common denominators that lead to tyranny; map the rise of some of the 20th century's dictators and discover how they seized power, exploited governing systems and gutted existing power structures to gain total control.

Cameras roll as Nazi Germany launches an all-out assault on the Soviet Union.

The Germans begin a retreat on the eve of the polar winter; the Soviet Union begins a major offensive in the north; the Finns push the Germans towards their defensive line.

[EPG Series] A look at how technological advances over the centuries have led to bigger and faster combat ships and transformed maritime warfare.

Cameras roll as Nazi Germany launches an all-out assault on the Soviet Union.

The Germans begin a retreat on the eve of the polar winter; the Soviet Union begins a major offensive in the north; the Finns push the Germans towards their defensive line.

[EPG Series] A look at how technological advances over the centuries have led to bigger and faster combat ships and transformed maritime warfare.

The story of "America's first serial killer," who stalked Chicago in the 1890's, and how the police departments of two major cities finally brought him to justice.

Cameras roll as Nazi Germany launches an all-out assault on the Soviet Union.

The Germans begin a retreat on the eve of the polar winter; the Soviet Union begins a major offensive in the north; the Finns push the Germans towards their defensive line.

[EPG Series] A look at how technological advances over the centuries have led to bigger and faster combat ships and transformed maritime warfare.

The history of the solar system might be preserved out in the dark domain of Pluto and beyond.

A dramatic repair mission gives the Hubble Space Telescope another chance to capture stunning pictures like only it can.

A journey along Ireland's longest river, the Shannon, through an emerald green landscape of rolling hills and sparkling waters; how Vikings, monks and kings have all made their mark.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

The history of the solar system might be preserved out in the dark domain of Pluto and beyond.

A dramatic repair mission gives the Hubble Space Telescope another chance to capture stunning pictures like only it can.

Nova Scotia's Southern coast.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Responding to an emergency call, Northstar marine sets out to salvage a sunken tug in the Delaware Bay; following the devastation caused by Hurricane Sally, Capt. Chris Ward and his crew work to salvage sunken sailboats and wrecked powerboats.

New discoveries reveal the astonishing role of women in the ancient world; from goddesses to matriarchies to witch trials.

Catastrophes have destroyed civilisations in the past; from pandemics to climate collapse and asteroid crashes, ancient disasters reveal much about today's world.

Egyptian archaeologists discover a vast burial chamber filled with over a hundred coffins.

Archaeologists discover a mysterious 2600-year-old coffin with a remarkable secret.

Cameras roll as Nazi Germany launches an all-out assault on the Soviet Union.

The Germans begin a retreat on the eve of the polar winter; the Soviet Union begins a major offensive in the north; the Finns push the Germans towards their defensive line.

[EPG Series] A look at how technological advances over the centuries have led to bigger and faster combat ships and transformed maritime warfare.

Bush aviators push the limit of their plane to deliver a two-ton generator. In Fairbanks, slippery runways threaten The Internation Ice Carving Championship and a high-tech airframe inspection on a Boeing 737 undercovers a poten.

Mike Davidson goes on a cross-country road trip to help the Well Done Foundation; they work to find and cap some of the estimated 2 million leaking, toxic abandoned oil and gas wells scattered throughout the U.S.

A new museum building bends 1,100-glass tubes to form a facade and tunnels below the water table. A vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.

Bush aviators push the limit of their plane to deliver a two-ton generator. In Fairbanks, slippery runways threaten The Internation Ice Carving Championship and a high-tech airframe inspection on a Boeing 737 undercovers a poten.

Mike Davidson goes on a cross-country road trip to help the Well Done Foundation; they work to find and cap some of the estimated 2 million leaking, toxic abandoned oil and gas wells scattered throughout the U.S.

A new museum building bends 1,100-glass tubes to form a facade and tunnels below the water table. A vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.

When a woman is found dead in the cellar of an Edinburgh doctor in 1828, police uncover a murky world where murders are being committed for money.

Bush aviators push the limit of their plane to deliver a two-ton generator. In Fairbanks, slippery runways threaten The Internation Ice Carving Championship and a high-tech airframe inspection on a Boeing 737 undercovers a poten.

Mike Davidson goes on a cross-country road trip to help the Well Done Foundation; they work to find and cap some of the estimated 2 million leaking, toxic abandoned oil and gas wells scattered throughout the U.S.

A new museum building bends 1,100-glass tubes to form a facade and tunnels below the water table. A vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.

Bill Nighy narrates a trip along the River Po, traveling across northern Italy from the snow-capped Alps to the delta where it meets the Adriatic Sea.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

A salvage maestro returns to raise more valuable tropical hardwood trying not to wreck his own boat in the process; the multimillion dollar operation to salvage America's biggest shipwreck.

Northumberland Strait.

In the future, telescopes will allow scientists to see further to planets that may support life.

Paid programming.

A salvage maestro returns to raise more valuable tropical hardwood trying not to wreck his own boat in the process; the multimillion dollar operation to salvage America's biggest shipwreck.

Northumberland Strait.

Archaeologists in Saqqara discover an unfinished tomb dating to Egypt's Old Kingdom and uncover 4,000-year-old secrets about the family it was built for.

At the mouth of the Suez Canal, Lino Arosemena and his crew have a monster repair job of removing and refitting a 20-ton propeller.

Actress Meghan Markle's upcoming marriage to Prince Harry is compared to the stories of other American actresses and heiresses who crossed the Atlantic to marry into nobility, such as Grace Kelly and Rita Hayworth.

Archaeologists in Saqqara discover an unfinished tomb dating to Egypt's Old Kingdom and uncover 4,000-year-old secrets about the family it was built for.

In 1943, the United States engages in a new series of island-hopping invasions; the first stop is the Tarawa Atoll, where troops embark upon the largest amphibious invasion ever staged in the Pacific to fight one of the costliest battles of the war.

Actress Meghan Markle's upcoming marriage to Prince Harry is compared to the stories of other American actresses and heiresses who crossed the Atlantic to marry into nobility, such as Grace Kelly and Rita Hayworth.

Dig up an epic find in South Dakota that fuels suspicion and misfortune, then examine an Egyptian boy king's tomb plagued by an ancient curse. Study a haunted English painting and ponder a relic coveted by a king that may have doomed his reign.

For centuries, Mexico's historic center has been a land of legends and power. From Veracruz's shores to Mexico City's ancient layers, Puebla's epic battle and Michoacan's indigenous traditions, discover where empires rise and tr.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs. In Talkeetna, pilots fight ice to deliver supplies to a homesteader's cabin in a.

In the wilds of Southern Africa, aviation takes over where roads don't go. Extreme Airport Africa brings you into the world of high-octane, high-risk bush flying where pilots brave rough runways, wild fires and wild animals.

For centuries, Mexico's historic center has been a land of legends and power. From Veracruz's shores to Mexico City's ancient layers, Puebla's epic battle and Michoacan's indigenous traditions, discover where empires rise and tr.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs. In Talkeetna, pilots fight ice to deliver supplies to a homesteader's cabin in a.

In the wilds of Southern Africa, aviation takes over where roads don't go. Extreme Airport Africa brings you into the world of high-octane, high-risk bush flying where pilots brave rough runways, wild fires and wild animals.

While Nazi Germany attempts to cover up the brutal murders of a serial killer, a brilliant detective uses early forensic methods to bring him to justice.

For centuries, Mexico's historic center has been a land of legends and power. From Veracruz's shores to Mexico City's ancient layers, Puebla's epic battle and Michoacan's indigenous traditions, discover where empires rise and tr.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs. In Talkeetna, pilots fight ice to deliver supplies to a homesteader's cabin in a.

In the wilds of Southern Africa, aviation takes over where roads don't go. Extreme Airport Africa brings you into the world of high-octane, high-risk bush flying where pilots brave rough runways, wild fires and wild animals.

Bill Nighy leads a magical journey in the Norfolk Broads along England's holiday river, the River Bure; discovering a watery world where both wildlife and recreation go hand in hand.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

The team must remove thousands of wrecked cars from the hull before it becomes an environmental disaster; repairing a vessel before the waters of the River Solent flood the hull.

The loyalist city of Saint John and international borders beyond, one of the worlds most famous waterways.

In an attempt to view the cosmos beyond the scope of human vision, infrared light and gamma radiation are used.

Paid programming.

The team must remove thousands of wrecked cars from the hull before it becomes an environmental disaster; repairing a vessel before the waters of the River Solent flood the hull.

The loyalist city of Saint John and international borders beyond, one of the worlds most famous waterways.

The discovery of a burial shaft filled with priceless gilded coffins provides insights into what happened when Greek rulers took over ancient Egypt.

Veteran salvor Paul Hay and his team rescue a clam-dredging crew's harvest lost in a storm off the New Jersey coast; following an annual cleanup operation in New Zealand that salvages fishing equipment gone astray.

Three Hollywood actresses become real-life princesses: Grace Kelly, Gloria Swanson and Rita Hayworth.

The discovery of a burial shaft filled with priceless gilded coffins provides insights into what happened when Greek rulers took over ancient Egypt.

By the summer of 1944, the United States is gaining the upper hand in the Pacific War with better training, troop numbers and supply lines; it aims for the heart of Japan's inner defense ring, engaging in a naval battle for Saipan in the Marianas.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs. In Talkeetna, pilots fight ice to deliver supplies to a homesteader's cabin in a.

In the wilds of Southern Africa, aviation takes over where roads don't go. Extreme Airport Africa brings you into the world of high-octane, high-risk bush flying where pilots brave rough runways, wild fires and wild animals.

Mike Davidson goes on a cross-country road trip to help the Well Done Foundation; they work to find and cap some of the estimated 2 million leaking, toxic abandoned oil and gas wells scattered throughout the U.S.

A new museum building bends 1,100-glass tubes to form a facade and tunnels below the water table. A vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.

Discover why the desire to capture Nazi weapon technology turns the U.S. and USSR from WW II allies into Cold War enemies; look at how the superpowers try to gain an Arctic foothold, from guerrilla warfare to intelligence schemes to nuclear arms.

Mike Davidson goes on a cross-country road trip to help the Well Done Foundation; they work to find and cap some of the estimated 2 million leaking, toxic abandoned oil and gas wells scattered throughout the U.S.

A new museum building bends 1,100-glass tubes to form a facade and tunnels below the water table. A vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.

Discover why the desire to capture Nazi weapon technology turns the U.S. and USSR from WW II allies into Cold War enemies; look at how the superpowers try to gain an Arctic foothold, from guerrilla warfare to intelligence schemes to nuclear arms.

Experts go on a search for New York's hidden stories, involving the Statue of Liberty, the 21 Club and Typhoid Mary.

Mike Davidson goes on a cross-country road trip to help the Well Done Foundation; they work to find and cap some of the estimated 2 million leaking, toxic abandoned oil and gas wells scattered throughout the U.S.

A new museum building bends 1,100-glass tubes to form a facade and tunnels below the water table. A vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.

Discover why the desire to capture Nazi weapon technology turns the U.S. and USSR from WW II allies into Cold War enemies; look at how the superpowers try to gain an Arctic foothold, from guerrilla warfare to intelligence schemes to nuclear arms.

Traveling the Dordogne River via traditional boats through the green heart of southwest France; drinking wine and hunting for truffles; riding a luxury cruiser to a lighthouse built for a king.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

Salvage crews work to install the world's largest environmental protection barrier; flying into a highly volatile region, crews battle pirates, tornadoes, and riots to salvage a wrecked cargo ship.

The natural wonders of the Gaspe Peninsula.

Decoding the secrets of long-lost human settlements; scrutinizing a mysterious Norwegian mound, a prehistoric stone circle on the banks of the Tagus River, a lost city in the cradle of civilization and bizarre rock shapes.

Salvage crews work to install the world's largest environmental protection barrier; flying into a highly volatile region, crews battle pirates, tornadoes, and riots to salvage a wrecked cargo ship.

The natural wonders of the Gaspe Peninsula.

An in-depth look at the life of China's first emperor, Qin Shi Huang, reveals new truths about his controversial rule.

Capt. John Ward and his crew are called to raise a sunken houseboat near Pensacola, Fla.; the owner of the boat wants it back, but the current occupiers of the boat living in it don't want John's services; there've been reports of gunfire too.

Women who blazed a trail through the arts world: Winnaretta Singer, Sara Murphy and Peggy Guggenheim.

An in-depth look at the life of China's first emperor, Qin Shi Huang, reveals new truths about his controversial rule.

Allied forces move to take the valuable islands of Tinian and Guam that threaten American air operations; meanwhile, Gen. Curtis LeMay is tasked with planning and executing a fire bombing campaign against Japan.

Mike Davidson goes on a cross-country road trip to help the Well Done Foundation; they work to find and cap some of the estimated 2 million leaking, toxic abandoned oil and gas wells scattered throughout the U.S.

A new museum building bends 1,100-glass tubes to form a facade and tunnels below the water table. A vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.

Paying tribute to the brave, gravity-defying design of the U.S. National Medal of Honor Museum; traveling to Singapore for a look at a leaning tower of gambling, then exploring a New York City office building that lets the sun shine through.

Stumble upon the largest Anglo-Saxon hoard in the wake of an ominous storm, then assess a precious stone's bloody curse. Discover the unforeseen consequences of disturbing an immortal Chinese army and get mesmerized by a divisive Egyptian sculpture.

At the heart of Saqqara, the largest necropolis in Egypt is the Step Pyramid of Djoser, built around 2600 BC.

Paying tribute to the brave, gravity-defying design of the U.S. National Medal of Honor Museum; traveling to Singapore for a look at a leaning tower of gambling, then exploring a New York City office building that lets the sun shine through.

Stumble upon the largest Anglo-Saxon hoard in the wake of an ominous storm, then assess a precious stone's bloody curse. Discover the unforeseen consequences of disturbing an immortal Chinese army and get mesmerized by a divisive Egyptian sculpture.

At the heart of Saqqara, the largest necropolis in Egypt is the Step Pyramid of Djoser, built around 2600 BC.

An exploration of little-known stories behind San Francisco landmarks and locations, including its golden fire hydrant and Dutch windmills.

Paying tribute to the brave, gravity-defying design of the U.S. National Medal of Honor Museum; traveling to Singapore for a look at a leaning tower of gambling, then exploring a New York City office building that lets the sun shine through.

Stumble upon the largest Anglo-Saxon hoard in the wake of an ominous storm, then assess a precious stone's bloody curse. Discover the unforeseen consequences of disturbing an immortal Chinese army and get mesmerized by a divisive Egyptian sculpture.

At the heart of Saqqara, the largest necropolis in Egypt is the Step Pyramid of Djoser, built around 2600 BC.

Rumoured to be the cleanest river in Europe, few dispute it's the coldest; cascading down from the Dinaric Alps in Serbia, it soon crosses the border into Bosnia Herzegovina, where marine biologist and fisherman Sanel Riđanović casts for salmon.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Traveling the Dordogne River via traditional boats through the green heart of southwest France; drinking wine and hunting for truffles; riding a luxury cruiser to a lighthouse built for a king.

Advanced telescopes capture images of the night sky from the Atacama Desert.

Paid programming.

Zoom in on some otherworldly sights; spot a giant glacier on the Red Planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn and take a spin around a doughnut-shaped lake in Saskatchewan.

Rumoured to be the cleanest river in Europe, few dispute it's the coldest; cascading down from the Dinaric Alps in Serbia, it soon crosses the border into Bosnia Herzegovina, where marine biologist and fisherman Sanel Riđanović casts for salmon.

Incredible rock formations, peat farms and some of the East Coast's impressive sand dunes.

An exploration of China's first emperor's mausoleum, highlighted by 8,000 terra-cotta warriors who guard the royal tomb.

John Ward and his crew are called to salvage a massive barge upturned by a storm in a canal; Hickory Scuba Divers work to salvage a valuable sailboat that's sunk at its mooring.

An inside look at how Hampton Court's warders and staff open and close the palace to the public; a look at the marriage of Henry VIII and Jane Seymour.

An exploration of China's first emperor's mausoleum, highlighted by 8,000 terra-cotta warriors who guard the royal tomb.

Allies slug it out on the island of Peleliu in a campaign to pave the way for Gen. MacArthur's return to the Philippines; footage shows troops enduring the muddy muck in the Philippines; Japan unveils a devastating new tactic, the kamikaze.

Paying tribute to the brave, gravity-defying design of the U.S. National Medal of Honor Museum; traveling to Singapore for a look at a leaning tower of gambling, then exploring a New York City office building that lets the sun shine through.

At the heart of Saqqara, the largest necropolis in Egypt is the Step Pyramid of Djoser, built around 2600 BC.

The Draken sails from the St. Lawrence River down to the Hudson; it heads to its final destination, New York City.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

The magnificent tomb of Alexander the Great mysteriously vanishes and becomes a legend; using CGI, investigators piece together the evidence to reveal where his tomb lies and what it might look like.

The Draken sails from the St. Lawrence River down to the Hudson; it heads to its final destination, New York City.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

The magnificent tomb of Alexander the Great mysteriously vanishes and becomes a legend; using CGI, investigators piece together the evidence to reveal where his tomb lies and what it might look like.

A tour of London exploring objects with secret histories, including its black cabs, the Marble Arch and the Horse Guards Clock.

The Draken sails from the St. Lawrence River down to the Hudson; it heads to its final destination, New York City.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

The magnificent tomb of Alexander the Great mysteriously vanishes and becomes a legend; using CGI, investigators piece together the evidence to reveal where his tomb lies and what it might look like.

Tackling the grade 6 rapids and untamed waters of the Buller River on the west coast of New Zealand's South Island, blessed by a Māori elder of the Ngāti Apa ki te Rā Tō.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

Rumoured to be the cleanest river in Europe, few dispute it's the coldest; cascading down from the Dinaric Alps in Serbia, it soon crosses the border into Bosnia Herzegovina, where marine biologist and fisherman Sanel Riđanović casts for salmon.

The Magdalen Islands.

Explores strongholds abandoned by their architects; a lost city in the Amazon jungle; a desert fortress made by humanity's most notorious empire; explores a city of identical castles; examines a Greek isle's bloody history from the air.

Tackling the grade 6 rapids and untamed waters of the Buller River on the west coast of New Zealand's South Island, blessed by a Māori elder of the Ngāti Apa ki te Rā Tō.

The Magdalen Islands.

Dig up an epic find in South Dakota that fuels suspicion and misfortune, then examine an Egyptian boy king's tomb plagued by an ancient curse. Study a haunted English painting and ponder a relic coveted by a king that may have doomed his reign.

Tourists explore the far reaches of northern Canada and gain exclusive access to polar bears on custom-built rovers; the Twin Otter aircraft drops much-needed supplies to isolated villages.

Exploring the palace's 60 acres of stunning gardens, its haunted corridor, and the doomed marriage of Henry VIII and Catherine Howard.

Dig up an epic find in South Dakota that fuels suspicion and misfortune, then examine an Egyptian boy king's tomb plagued by an ancient curse. Study a haunted English painting and ponder a relic coveted by a king that may have doomed his reign.

By the spring of 1945, the United States begins to take back the Philippines; on Borneo, the Australians invade Labuan; when the United States invades Okinawa, Japan makes a strong stand and launches the biggest kamikaze attacks of the war.

Examine mysterious holes in Isreal; explore a ghost village hidden in the Colombian jungle, a shipwreck off the coast of Sri Lanka and a gutted airplane fuselage abandoned in Iceland.

The magnificent tomb of Alexander the Great mysteriously vanishes and becomes a legend; using CGI, investigators piece together the evidence to reveal where his tomb lies and what it might look like.

Relive the Flight of the Crow, a trek across Nazi-occupied Europe; find out how two Austrian mountaineers hiked their way out of the Himalayas, then learn why 378 Japanese POWs risked it all in Australia's bloody Cowra Breakout.

Dictators may appear omnipotent, but their position depends largely on a network of individuals who benefit from their rule, and their support does not come cheap.

Relive the Flight of the Crow, a trek across Nazi-occupied Europe; find out how two Austrian mountaineers hiked their way out of the Himalayas, then learn why 378 Japanese POWs risked it all in Australia's bloody Cowra Breakout.

Dictators may appear omnipotent, but their position depends largely on a network of individuals who benefit from their rule, and their support does not come cheap.

Immerse yourself in the Roaring Twenties inside a hidden art deco grocery store that was once an LGBTQ+ club and a secret Nazi hangout; learn how the city's most popular street food, currywurst, emerged from the ruins of the Second World War.

Relive the Flight of the Crow, a trek across Nazi-occupied Europe; find out how two Austrian mountaineers hiked their way out of the Himalayas, then learn why 378 Japanese POWs risked it all in Australia's bloody Cowra Breakout.

Dictators may appear omnipotent, but their position depends largely on a network of individuals who benefit from their rule, and their support does not come cheap.

The Northern Lights tells the story of the makeup of the planet, the sun and possibly life on other planets.

Using computer simulations, it is possible to fly over other worlds and see how galaxies interact.

Bill Nighy narrates a trip along the River Po, traveling across northern Italy from the snow-capped Alps to the delta where it meets the Adriatic Sea.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

The Northern Lights tells the story of the makeup of the planet, the sun and possibly life on other planets.

Using computer simulations, it is possible to fly over other worlds and see how galaxies interact.

Incredible rock formations, peat farms and some of the East Coast's impressive sand dunes.

Exploring some of the most cavernous places on the planet, including an expansive Siberian crater with no explainable origin, Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert, and a voluminous void in Antarctica.

In 1943, the United States engages in a new series of island-hopping invasions; the first stop is the Tarawa Atoll, where troops embark upon the largest amphibious invasion ever staged in the Pacific to fight one of the costliest battles of the war.

By the summer of 1944, the United States is gaining the upper hand in the Pacific War with better training, troop numbers and supply lines; it aims for the heart of Japan's inner defense ring, engaging in a naval battle for Saipan in the Marianas.

Allied forces move to take the valuable islands of Tinian and Guam that threaten American air operations; meanwhile, Gen. Curtis LeMay is tasked with planning and executing a fire bombing campaign against Japan.

Allies slug it out on the island of Peleliu in a campaign to pave the way for Gen. MacArthur's return to the Philippines; footage shows troops enduring the muddy muck in the Philippines; Japan unveils a devastating new tactic, the kamikaze.

By the spring of 1945, the United States begins to take back the Philippines; on Borneo, the Australians invade Labuan; when the United States invades Okinawa, Japan makes a strong stand and launches the biggest kamikaze attacks of the war.

Relive the Flight of the Crow, a trek across Nazi-occupied Europe; find out how two Austrian mountaineers hiked their way out of the Himalayas, then learn why 378 Japanese POWs risked it all in Australia's bloody Cowra Breakout.

Uncover the sinister ways that dictators convince their followers to worship them as heroes; watch how they weave mythical narratives around their abilities, selling themselves as saviors who should hold absolute power over the people.

Footage of life and death on the battlefield of El Alamein and behind the lines in the African desert.

Discover why the desire to capture Nazi weapon technology turns the U.S. and USSR from WW II allies into Cold War enemies; look at how the superpowers try to gain an Arctic foothold, from guerrilla warfare to intelligence schemes to nuclear arms.

Examining some of maritime history's most effective lightning strikes; how the French frigate Nivôse set a trap to lure Somali pirates; how the HMS Illustrious captured a well-defended Mediterranean harbor in WWII; a surprise attack on Tokyo in 1942.

Footage of life and death on the battlefield of El Alamein and behind the lines in the African desert.

Discover why the desire to capture Nazi weapon technology turns the U.S. and USSR from WW II allies into Cold War enemies; look at how the superpowers try to gain an Arctic foothold, from guerrilla warfare to intelligence schemes to nuclear arms.

Examining some of maritime history's most effective lightning strikes; how the French frigate Nivôse set a trap to lure Somali pirates; how the HMS Illustrious captured a well-defended Mediterranean harbor in WWII; a surprise attack on Tokyo in 1942.

Walk the cobblestone streets and take in the city's urban design to uncover the key to it's revolutionary past; discover why tourists should skip the Eiffel Tower and climb the ugliest skyscraper in Europe instead.

Footage of life and death on the battlefield of El Alamein and behind the lines in the African desert.

Discover why the desire to capture Nazi weapon technology turns the U.S. and USSR from WW II allies into Cold War enemies; look at how the superpowers try to gain an Arctic foothold, from guerrilla warfare to intelligence schemes to nuclear arms.

Examining some of maritime history's most effective lightning strikes; how the French frigate Nivôse set a trap to lure Somali pirates; how the HMS Illustrious captured a well-defended Mediterranean harbor in WWII; a surprise attack on Tokyo in 1942.

The second largest planet is also a mini-solar system with 60 moons and those crazy rings.

The Dawn mission explores the asteroid Vesta and dwarf planet Ceres.

Bill Nighy leads a magical journey in the Norfolk Broads along England's holiday river, the River Bure; discovering a watery world where both wildlife and recreation go hand in hand.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

The second largest planet is also a mini-solar system with 60 moons and those crazy rings.

The Dawn mission explores the asteroid Vesta and dwarf planet Ceres.

The loyalist city of Saint John and international borders beyond, one of the worlds most famous waterways.

A perfect circle carved around an ancient peak; a scary phenomenon in the Pacific; strange shapes in a Middle Eastern desert; a formation below the ocean's surface.

Archaeologists in Saqqara discover an unfinished tomb dating to Egypt's Old Kingdom and uncover 4,000-year-old secrets about the family it was built for.

The discovery of a burial shaft filled with priceless gilded coffins provides insights into what happened when Greek rulers took over ancient Egypt.

An in-depth look at the life of China's first emperor, Qin Shi Huang, reveals new truths about his controversial rule.

An exploration of China's first emperor's mausoleum, highlighted by 8,000 terra-cotta warriors who guard the royal tomb.

Dig up an epic find in South Dakota that fuels suspicion and misfortune, then examine an Egyptian boy king's tomb plagued by an ancient curse. Study a haunted English painting and ponder a relic coveted by a king that may have doomed his reign.

Footage of life and death on the battlefield of El Alamein and behind the lines in the African desert.

Discover why the desire to capture Nazi weapon technology turns the U.S. and USSR from WW II allies into Cold War enemies; look at how the superpowers try to gain an Arctic foothold, from guerrilla warfare to intelligence schemes to nuclear arms.

Examining some of maritime history's most effective lightning strikes; how the French frigate Nivôse set a trap to lure Somali pirates; how the HMS Illustrious captured a well-defended Mediterranean harbor in WWII; a surprise attack on Tokyo in 1942.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs. In Talkeetna, pilots fight ice to deliver supplies to a homesteader's cabin in a.

Mike Davidson embarks with the team to one of the most extreme, avalanche-prone ski mountains in the world: Snowbird; they battle to keep the steep and deep slopes safe with shovels, snowcats and even a WWII Howitzer.

A 70,000-seat stadium defies seismic forces and international flight paths in LA. Zaha Hadid's dramatically twisted 33-story tower rises around ancient vaults in Malta.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs. In Talkeetna, pilots fight ice to deliver supplies to a homesteader's cabin in a.

Mike Davidson embarks with the team to one of the most extreme, avalanche-prone ski mountains in the world: Snowbird; they battle to keep the steep and deep slopes safe with shovels, snowcats and even a WWII Howitzer.

A 70,000-seat stadium defies seismic forces and international flight paths in LA. Zaha Hadid's dramatically twisted 33-story tower rises around ancient vaults in Malta.

Get the inside scoop on a Michelin-star meal that's less than three dollars; learn the history of hawker food; get a personal tour from Toilet Man to learn how beautiful gardens and obsessively clean toilets made the city rich.

The first fly-by-wire helicopter is put through its paces, as test pilots harness freezing temperatures. In Anchorage, a jet is lifted for repairs. In Talkeetna, pilots fight ice to deliver supplies to a homesteader's cabin in a.

Mike Davidson embarks with the team to one of the most extreme, avalanche-prone ski mountains in the world: Snowbird; they battle to keep the steep and deep slopes safe with shovels, snowcats and even a WWII Howitzer.

A 70,000-seat stadium defies seismic forces and international flight paths in LA. Zaha Hadid's dramatically twisted 33-story tower rises around ancient vaults in Malta.

The St. Lawrence River is one that forged North America, allowing ships to traverse the continent; the adventure begins in Canada's first capital city of Kingston and near Canada's second largest city of Montreal.

Peek at landmarks in places where they shouldn't be; wing your way over an imperial pyramid in the Netherlands, a metal sphere in remote Russia, a lion shape carved into an English hillside and a bare swath cut through an Austrian forest.

In rough water, salvors scramble to retrieve a cruise ship's anchor lost at sea; teams hope to salvage cherished floating homes damaged by hurricane Sandy.

The west coast of Newfoundland is a story of cultural history and natural beauty, from the first European settlements at historic Port au Choix, to the incredible, scenery of Gros Morne National Park.

The search for water is actually the search for life, and that search is taking man to some unusual places, including a moon of Saturn.

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In rough water, salvors scramble to retrieve a cruise ship's anchor lost at sea; teams hope to salvage cherished floating homes damaged by hurricane Sandy.

The west coast of Newfoundland is a story of cultural history and natural beauty, from the first European settlements at historic Port au Choix, to the incredible, scenery of Gros Morne National Park.

Stumble upon the largest Anglo-Saxon hoard in the wake of an ominous storm, then assess a precious stone's bloody curse. Discover the unforeseen consequences of disturbing an immortal Chinese army and get mesmerized by a divisive Egyptian sculpture.

A wind farm depends on the all-terrain abilities of the Hagglund BV206 in Sweden.

An in-depth look at the life of China's first emperor, Qin Shi Huang, reveals new truths about his controversial rule.

Stumble upon the largest Anglo-Saxon hoard in the wake of an ominous storm, then assess a precious stone's bloody curse. Discover the unforeseen consequences of disturbing an immortal Chinese army and get mesmerized by a divisive Egyptian sculpture.

President Harry Truman decides to drop the atomic bomb on Hiroshima and Nagasaki; Emperor Hirohito surrenders, and Gen. Douglas MacArthur arrives to oversee the country's occupation; mortal enemies must now become partners in Japan's rebirth.

An in-depth look at the life of China's first emperor, Qin Shi Huang, reveals new truths about his controversial rule.