Germany's selection of strange bedfellows in the form of despots and dictators comes back to haunt them.

Exploring the events that occurred twenty-four hours before the unconditional surrender of Germany and Japan, commemorating the eightieth anniversary of the end of the Second World War.

On the August 1945; after two U.S. nuclear attacks, Japan's emperor prepares the nation to surrender; the undercover miliary factions plot to fight on; how close did they get to changing history?

Germany's selection of strange bedfellows in the form of despots and dictators comes back to haunt them.

U.S. paratroopers that dropped into France before the D-Day landings battle Nazi defenders for a key bridge behind enemy lines.

Five months after D-Day, the ground war finally arrives on German soil as British soldiers attack in the shadow of Hitler's infamous Siegfried Line.

A platoon of American Buffalo Soldiers exceeds all expectations to advance on a Nazi-occupied castle in the foothills of Northern Italy.

With thousands of German soldiers trapped in the Falaise Pocket, a small Canadian tank squadron tries to close off the escape route.

A U.S. Parachute Infantry Regiment rushes to protect a critical bridge from a Nazi battle group during the opening days of the Battle of the Bulge.

Mercury, one of the nearest planets to earth, has eluded astronomers' best efforts to learn its secrets until missions like Mariner and Messenger.

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An elite group of British paratroopers launch a midnight raid in order to capture Hitler's unusual radar equipment.

American paratroopers are dropped behind German lines on D-Day in order to secure territory behind the beaches.

British Commandos raid two occupied Norwegian islands to wipe out fish oil factories used to make explosives.

The first invasion of the Italian Campaign of WWII: Operation Husky.

Rare archive footage charts the German Army in 1940 as it unleashes a new Blitzkrieg tactic.

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

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

The story of the greatest tank battle the world has ever seen.

After the landing on Normandy Beach, the Battle of Carentan breaks out and an American unit launches a desperate bayonet charge.

After months of fighting in Europe, U.S. troops finally enter Germany; with their sights set on the city of Aachen, the Americans must break through two rows of bunker fortifications to capture the old capital.

A Japanese American regiment fights through darkened forests, heavy rains and entrenched Nazis to reach a lost U.S. battalion in the Vosges Mountains.

During the Battle of the Bulge, a young U.S. scout gets trapped behind enemy lines.

Investigating how early concepts of armoured fighting vehicles influenced the creation of the very first tank prototype; seeing how the muddy battlefields of WW I became a crucial testing ground for a machine that would soon change military history.

Uncovering the inspiring stories of the U.S. Army's 761st Tank Battalion; descendants and historians discuss the honor of the first armored unit of its kind, entirely composed of African-American servicemen.

After months of fighting in Europe, U.S. troops finally enter Germany; with their sights set on the city of Aachen, the Americans must break through two rows of bunker fortifications to capture the old capital.

A Japanese American regiment fights through darkened forests, heavy rains and entrenched Nazis to reach a lost U.S. battalion in the Vosges Mountains.

Investigating how early concepts of armoured fighting vehicles influenced the creation of the very first tank prototype; seeing how the muddy battlefields of WW I became a crucial testing ground for a machine that would soon change military history.

Uncovering the inspiring stories of the U.S. Army's 761st Tank Battalion; descendants and historians discuss the honor of the first armored unit of its kind, entirely composed of African-American servicemen.

Germany's selection of strange bedfellows in the form of despots and dictators comes back to haunt them.

Exploring the events that occurred twenty-four hours before the unconditional surrender of Germany and Japan, commemorating the eightieth anniversary of the end of the Second World War.

On the August 1945; after two U.S. nuclear attacks, Japan's emperor prepares the nation to surrender; the undercover miliary factions plot to fight on; how close did they get to changing history?

Germany's selection of strange bedfellows in the form of despots and dictators comes back to haunt them.

Exploring the events that occurred twenty-four hours before the unconditional surrender of Germany and Japan, commemorating the eightieth anniversary of the end of the Second World War.

Examining how cosmic rays are produced and what that can tell us about the universe.

Paid programming.

Germany's selection of strange bedfellows in the form of despots and dictators comes back to haunt them.

Exploring the events that occurred twenty-four hours before the unconditional surrender of Germany and Japan, commemorating the eightieth anniversary of the end of the Second World War.

On the August 1945; after two U.S. nuclear attacks, Japan's emperor prepares the nation to surrender; the undercover miliary factions plot to fight on; how close did they get to changing history?

First-hand accounts, recreations and expert interviews of the battle of Dunkirk, and how soldiers were trapped on the French beach by German forces.

First-hand accounts, re-creations and expert interviews of D-Day in 1944, where the Allied Forces of Britain, America, Canada and France attacked German forces on the coast of Normandy, France.

The Japanese attack on Pearl Harbor triggers the U.S. entering WWII; we reveal the secret stories behind the battle such as that of Dorie Miller.

Investigating how early concepts of armoured fighting vehicles influenced the creation of the very first tank prototype; seeing how the muddy battlefields of WW I became a crucial testing ground for a machine that would soon change military history.

First-hand accounts, recreations and expert interviews of the battle of Dunkirk, and how soldiers were trapped on the French beach by German forces.

First-hand accounts, re-creations and expert interviews of D-Day in 1944, where the Allied Forces of Britain, America, Canada and France attacked German forces on the coast of Normandy, France.

The Japanese attack on Pearl Harbor triggers the U.S. entering WWII; we reveal the secret stories behind the battle such as that of Dorie Miller.

There are many stories behind the 1940 Battle of Britain, like pilot Bill Millington who sacrifices himself to save civilians.

The tales behind the Blitz; the employment of German speaking radio controllers to confuse Luftwaffe pilots; the French spy who helped the RAF.

Exploring the many battles fought out on the banks of the Rhine in 1944 and the secrets behind the lines of the battleground.

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.

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.

Examine how German soldiers used an erotic painting and other decoys to distract their captors as they tunnelled out of Island Farm POW camp in Wales; see how American bombardiers were smuggled out of Russia, and study a wartime Trojan Horse plot.

A mass uprising that shows the world the truth about the Nazis' secret Sobibor death camp; learn how the Davao Dozen break out of a harsh Japanese penal colony and explore how two plucky German pilots plot to get out of Britain.

Discover the German submarines that caused havoc in the American desert, the playboy pilot they couldn't cage, and the young lovers whose escape defied all odds.

Meandering through the black waters of a primordial river immortalized in a folk song.

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.

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.

Meandering through the black waters of a primordial river immortalized in a folk song.

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.

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.

Explore three discoveries that change what we know about magic and superstition; delve into a Polish vampire grave, open a UK witch bottle used to ward off evil, and see if alien-like skulls in Mexico were shaped by humans or otherworldly beings.

Exhume chilling insights into ancient rituals, legendary warriors, and brutal deaths; investigate dozens of children's skeletons in Peru, find out if Amazon warriors once lived in Russia, and see what a UK cave full of butchered remains reveals.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

Discover shocking truths about religious rituals, sacred symbols, and spiritual traditions. Learn the brutal truth about execution rites in Roman England, look at shark bones in a Peruvian temple, and unearth a secret silver amulet in Germany.

Rethink what we know about death and preservation. See why Denmark's perfectly preserved Tollund Man raises haunting questions, observe Portuguese bodies that rewrite history, and uncover the dark mystery of Scotland's Frankenstein mummies.

Open burial sites filled with secrets. Find powerful artifacts in a French rulers tomb, see what a tomb adorned with conch shells says about sacred ceremonies, and expose complex beliefs about animals and the afterlife in an Egyptian zoo graveyard.

Puzzling over history-making structures and artifacts; Searching for clues about civilization's origins in Göbekli Tepe, visiting a German statue that reveals symbolic thought; witnessing the brutality of colonization in a Mexican skull tower.

Learning how displaced artifacts spark fresh investigations and rewrite timelines; unearthing a forgotten tragedy in a remote mountain lake in India, checking out footprints that change human migration stories; reopening an ancient cold case.

Board a rookie pilot's first flight with a planeload of passengers, then go to war with feathered invaders on the runway; wing between Johannesburg skyscrapers in a heavy-lift helicopter and save endangered rhinos with Africa's top bush aviators.

A damaged plane plunges Anchorage Airport into an emergency; a leak on a Coast Guard helicopter jeopardizes emergency cover; rain turns the Fairbanks runways into ice rinks and a dog-sled racing prodigy flies with furry teammates.

A journey across Central Italy from the air reveals the ancient Rome, the bloody medieval battles of Tuscany and the colossal marble quarries of Carrara.

Board a rookie pilot's first flight with a planeload of passengers, then go to war with feathered invaders on the runway; wing between Johannesburg skyscrapers in a heavy-lift helicopter and save endangered rhinos with Africa's top bush aviators.

A damaged plane plunges Anchorage Airport into an emergency; a leak on a Coast Guard helicopter jeopardizes emergency cover; rain turns the Fairbanks runways into ice rinks and a dog-sled racing prodigy flies with furry teammates.

A journey across Central Italy from the air reveals the ancient Rome, the bloody medieval battles of Tuscany and the colossal marble quarries of Carrara.

Explore three discoveries that change what we know about magic and superstition; delve into a Polish vampire grave, open a UK witch bottle used to ward off evil, and see if alien-like skulls in Mexico were shaped by humans or otherworldly beings.

Exhume chilling insights into ancient rituals, legendary warriors, and brutal deaths; investigate dozens of children's skeletons in Peru, find out if Amazon warriors once lived in Russia, and see what a UK cave full of butchered remains reveals.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

Explore three discoveries that change what we know about magic and superstition; delve into a Polish vampire grave, open a UK witch bottle used to ward off evil, and see if alien-like skulls in Mexico were shaped by humans or otherworldly beings.

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.

Confront objects that make no sense; spot a spinning island in an Argentinian marsh, a colossal triangle stuck in the Arizona desert, mysterious multicolored pools across northern Ethiopia and a huge human figure hidden in the Australian outback.

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.

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.

Confront objects that make no sense; spot a spinning island in an Argentinian marsh, a colossal triangle stuck in the Arizona desert, mysterious multicolored pools across northern Ethiopia and a huge human figure hidden in the Australian outback.

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.

A look at experimental ships and revolutionary designers that have changed the tide of war through the centuries.

The legendary Battle of Trafalgar in 1805, which pitted Napoleon's French ships against a British armada under the command of Admiral Horatio Nelson.

Board a rookie pilot's first flight with a planeload of passengers, then go to war with feathered invaders on the runway; wing between Johannesburg skyscrapers in a heavy-lift helicopter and save endangered rhinos with Africa's top bush aviators.

A damaged plane plunges Anchorage Airport into an emergency; a leak on a Coast Guard helicopter jeopardizes emergency cover; rain turns the Fairbanks runways into ice rinks and a dog-sled racing prodigy flies with furry teammates.

A journey across Central Italy from the air reveals the ancient Rome, the bloody medieval battles of Tuscany and the colossal marble quarries of Carrara.

Board a rookie pilot's first flight with a planeload of passengers, then go to war with feathered invaders on the runway; wing between Johannesburg skyscrapers in a heavy-lift helicopter and save endangered rhinos with Africa's top bush aviators.

A damaged plane plunges Anchorage Airport into an emergency; a leak on a Coast Guard helicopter jeopardizes emergency cover; rain turns the Fairbanks runways into ice rinks and a dog-sled racing prodigy flies with furry teammates.

A journey across Central Italy from the air reveals the ancient Rome, the bloody medieval battles of Tuscany and the colossal marble quarries of Carrara.

Witness the devastating impact of the German blitzkrieg as new tank strategies take the world by storm. Learn how Germany overcame the inferiority of its panzers and swept through Poland and France with innovations in logistics and strategy.

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

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.

Witness the devastating impact of the German blitzkrieg as new tank strategies take the world by storm. Learn how Germany overcame the inferiority of its panzers and swept through Poland and France with innovations in logistics and strategy.

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

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.

Witness the devastating impact of the German blitzkrieg as new tank strategies take the world by storm. Learn how Germany overcame the inferiority of its panzers and swept through Poland and France with innovations in logistics and strategy.

A look at experimental ships and revolutionary designers that have changed the tide of war through the centuries.

The legendary Battle of Trafalgar in 1805, which pitted Napoleon's French ships against a British armada under the command of Admiral Horatio Nelson.

Witness the devastating impact of the German blitzkrieg as new tank strategies take the world by storm. Learn how Germany overcame the inferiority of its panzers and swept through Poland and France with innovations in logistics and strategy.

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.

Take a deep dive into watery enigmas; glide over a sunken Italian city; a unique underwater cemetery in the Florida Keys; a yellow brick road to nowhere in the depths of the North Pacific; puzzling rocky constructions off the coast of Australia.

Crews work around the clock to build the world's largest underwater concrete bed to salvage the Costa Concordia; operating in secrecy, teams work under high security to repair one of the world's most iconic cruise liners.

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.

Take a deep dive into watery enigmas; glide over a sunken Italian city; a unique underwater cemetery in the Florida Keys; a yellow brick road to nowhere in the depths of the North Pacific; puzzling rocky constructions off the coast of Australia.

Crews work around the clock to build the world's largest underwater concrete bed to salvage the Costa Concordia; operating in secrecy, teams work under high security to repair one of the world's most iconic cruise liners.

A portrayal of a crucial September 1950 military operation that helped the UN and ROK gain the upper hand over North Korea in the Korean War.

A look at key naval battles that have taken place in the Persian Gulf over the last 50 years and the warships involved, from both sides of the conflicts.

Witness the devastating impact of the German blitzkrieg as new tank strategies take the world by storm. Learn how Germany overcame the inferiority of its panzers and swept through Poland and France with innovations in logistics and strategy.

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

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.

Witness the devastating impact of the German blitzkrieg as new tank strategies take the world by storm. Learn how Germany overcame the inferiority of its panzers and swept through Poland and France with innovations in logistics and strategy.

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

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.

Examine the sightlines in Los Angeles's SoFi Stadium, which sits right in the flight path of LAX; celebrate the ingenuity of the inexperienced crew that built a monumental skyscraper in Malta; visit a forest tower designed for testing elevators.

Visiting the heart of history in the Dahshur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries.

Follow the meteoric rise of the Macedonian conqueror who seized Egypt and built an empire that stretched from Europe to Asia; find out how founding the city of Alexandria and becoming a pharaoh transformed Alexander's life before his death at age 32.

Examine the sightlines in Los Angeles's SoFi Stadium, which sits right in the flight path of LAX; celebrate the ingenuity of the inexperienced crew that built a monumental skyscraper in Malta; visit a forest tower designed for testing elevators.

Visiting the heart of history in the Dahshur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries.

Follow the meteoric rise of the Macedonian conqueror who seized Egypt and built an empire that stretched from Europe to Asia; find out how founding the city of Alexandria and becoming a pharaoh transformed Alexander's life before his death at age 32.

Examine the sightlines in Los Angeles's SoFi Stadium, which sits right in the flight path of LAX; celebrate the ingenuity of the inexperienced crew that built a monumental skyscraper in Malta; visit a forest tower designed for testing elevators.

A portrayal of a crucial September 1950 military operation that helped the UN and ROK gain the upper hand over North Korea in the Korean War.

A look at key naval battles that have taken place in the Persian Gulf over the last 50 years and the warships involved, from both sides of the conflicts.

Confront objects that make no sense; spot a spinning island in an Argentinian marsh, a colossal triangle stuck in the Arizona desert, mysterious multicolored pools across northern Ethiopia and a huge human figure hidden in the Australian outback.

The journey down the attraction-packed Niagara River is filled with adventure and beauty; navigating the fascinating history and engineering of this border river between Canada and the United States, arriving at the world-famous Niagara Falls.

Psychedelic swirls in the Utah wastelands; a bizarre configuration of circles in the Sahara; hidden lines with the help of a drone; a remote polka-dot lake in Canada.

Salvaging a 50-foot motor yacht in Islamorada, Fla.; a 44-foot launch hung up on a dam on the Mississippi River; repairing a major storm gate in the British Isles.

The Fermi Paradox asks why another civilization has not presented itself.

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Psychedelic swirls in the Utah wastelands; a bizarre configuration of circles in the Sahara; hidden lines with the help of a drone; a remote polka-dot lake in Canada.

Salvaging a 50-foot motor yacht in Islamorada, Fla.; a 44-foot launch hung up on a dam on the Mississippi River; repairing a major storm gate in the British Isles.

New high-tech investigations uncover what sunk a World War I cruiser, a World War II submarine, a British destroyer from the Falklands War, and more.

A look at how navy weapons have evolved over the centuries, from cannons to gun turrets to nuclear missiles and beyond.

Examine the sightlines in Los Angeles's SoFi Stadium, which sits right in the flight path of LAX; celebrate the ingenuity of the inexperienced crew that built a monumental skyscraper in Malta; visit a forest tower designed for testing elevators.

Visiting the heart of history in the Dahshur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries.

Follow the meteoric rise of the Macedonian conqueror who seized Egypt and built an empire that stretched from Europe to Asia; find out how founding the city of Alexandria and becoming a pharaoh transformed Alexander's life before his death at age 32.

Examine the sightlines in Los Angeles's SoFi Stadium, which sits right in the flight path of LAX; celebrate the ingenuity of the inexperienced crew that built a monumental skyscraper in Malta; visit a forest tower designed for testing elevators.

Visiting the heart of history in the Dahshur necropolis, where the first of the great pyramids was built; examining what a mini-scanner called a LiDAR reveals about this landmark's enduring mysteries.

Follow the meteoric rise of the Macedonian conqueror who seized Egypt and built an empire that stretched from Europe to Asia; find out how founding the city of Alexandria and becoming a pharaoh transformed Alexander's life before his death at age 32.

Unlock the secrets of Newgrange, a 5,000-year-old Irish tomb aligned with the winter solstice sun; analyze DNA evidence that reveals a powerful, incestuous dynastic bloodline and suggests that this monument was built to honor a lost ruling class.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

Investigate the sudden death of a tycoon linked to King Tut's tomb; search for three lighthouse keepers who vanished from the Flannan Isles, then analyze the gruesome, unexplained deaths of nine hikers at the Dyatlov Pass in the Ural Mountains.

Unlock the secrets of Newgrange, a 5,000-year-old Irish tomb aligned with the winter solstice sun; analyze DNA evidence that reveals a powerful, incestuous dynastic bloodline and suggests that this monument was built to honor a lost ruling class.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

Investigate the sudden death of a tycoon linked to King Tut's tomb; search for three lighthouse keepers who vanished from the Flannan Isles, then analyze the gruesome, unexplained deaths of nine hikers at the Dyatlov Pass in the Ural Mountains.

Unlock the secrets of Newgrange, a 5,000-year-old Irish tomb aligned with the winter solstice sun; analyze DNA evidence that reveals a powerful, incestuous dynastic bloodline and suggests that this monument was built to honor a lost ruling class.

New high-tech investigations uncover what sunk a World War I cruiser, a World War II submarine, a British destroyer from the Falklands War, and more.

A look at how navy weapons have evolved over the centuries, from cannons to gun turrets to nuclear missiles and beyond.

Take a deep dive into watery enigmas; glide over a sunken Italian city; a unique underwater cemetery in the Florida Keys; a yellow brick road to nowhere in the depths of the North Pacific; puzzling rocky constructions off the coast of Australia.

A breathtaking journey down the German section of the beautiful Moselle river, famous for vineyards on its dramatically steep banks and remarkable meandering loops.

Learning why an important urban center is sinking toward oblivion; soaring over sprawling ruins buried under Saharan sands; learning the modern secret of an ancient fortress; eyeing a ghost town on the edge of the Gobi.

Jeremy Birch takes on a salvage to raise a vessel with a concrete hull; it's been in the Fraser River for a month, collecting silt and mud, adding 30 tons to its deadweight.

A breathtaking journey down the German section of the beautiful Moselle river, famous for vineyards on its dramatically steep banks and remarkable meandering loops.

Learning why an important urban center is sinking toward oblivion; soaring over sprawling ruins buried under Saharan sands; learning the modern secret of an ancient fortress; eyeing a ghost town on the edge of the Gobi.

Jeremy Birch takes on a salvage to raise a vessel with a concrete hull; it's been in the Fraser River for a month, collecting silt and mud, adding 30 tons to its deadweight.

A look at Naval warfare's fastest combat ships and how the advantage of speed determined the outcome of some of the great seas battles of the last 150 years.

A look at riverine warfare from the Civil War to Vietnam and small but powerful combat ships.

Unlock the secrets of Newgrange, a 5,000-year-old Irish tomb aligned with the winter solstice sun; analyze DNA evidence that reveals a powerful, incestuous dynastic bloodline and suggests that this monument was built to honor a lost ruling class.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

Investigate the sudden death of a tycoon linked to King Tut's tomb; search for three lighthouse keepers who vanished from the Flannan Isles, then analyze the gruesome, unexplained deaths of nine hikers at the Dyatlov Pass in the Ural Mountains.

Unlock the secrets of Newgrange, a 5,000-year-old Irish tomb aligned with the winter solstice sun; analyze DNA evidence that reveals a powerful, incestuous dynastic bloodline and suggests that this monument was built to honor a lost ruling class.

Challenge long-held beliefs about Viking leadership, weaponry, and brutality; inspect a warriors tomb full of clues in Sweden, a sword of unparalleled quality in Norway, and a pile of headless skeletons in the UK that reveal unimaginable violence.

Investigate the sudden death of a tycoon linked to King Tut's tomb; search for three lighthouse keepers who vanished from the Flannan Isles, then analyze the gruesome, unexplained deaths of nine hikers at the Dyatlov Pass in the Ural Mountains.

As German resources began to run thin as the War progressed, Hitler and Goebbels promoted Wonder Weapons as a way to pave a new path towards victory.

The inside story of the ultimate stealth fighter, the F-22 Raptor, and its predecessors.

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

As German resources began to run thin as the War progressed, Hitler and Goebbels promoted Wonder Weapons as a way to pave a new path towards victory.

The inside story of the ultimate stealth fighter, the F-22 Raptor, and its predecessors.

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

As German resources began to run thin as the War progressed, Hitler and Goebbels promoted Wonder Weapons as a way to pave a new path towards victory.

A look at Naval warfare's fastest combat ships and how the advantage of speed determined the outcome of some of the great seas battles of the last 150 years.

A look at riverine warfare from the Civil War to Vietnam and small but powerful combat ships.

As German resources began to run thin as the War progressed, Hitler and Goebbels promoted Wonder Weapons as a way to pave a new path towards victory.

New York's Hudson River stretches 315 miles through natural landscapes, from the Adirondack Mountains to the George Washington Bridge and Statue of Liberty.

Get petrified by cryptic rock structures normally hidden from view; look inside curious dwellings in the Peruvian Andes; visit a sacred monolith in Wyoming's Black Hills; haunt a Turkish stone village; spot an immovable waterfall in Mexico.

Chris Ward sets out with Josh Moreira and Ward's younger brother to salvage a light aircraft that's sitting on the seabed; Jeremy Birch braves the arctic conditions to salvage two vessels that have fallen prey to the crushing ice conditions.

New York's Hudson River stretches 315 miles through natural landscapes, from the Adirondack Mountains to the George Washington Bridge and Statue of Liberty.

Get petrified by cryptic rock structures normally hidden from view; look inside curious dwellings in the Peruvian Andes; visit a sacred monolith in Wyoming's Black Hills; haunt a Turkish stone village; spot an immovable waterfall in Mexico.

Examining Landsat 8, the advanced planetary explorer with a 900 million dollar price tag, which is designed to reveal complex and ever-changing details undetectable by the human eye.

Paid programming.

A look at experimental ships and revolutionary designers that have changed the tide of war through the centuries.

The legendary Battle of Trafalgar in 1805, which pitted Napoleon's French ships against a British armada under the command of Admiral Horatio Nelson.

A portrayal of a crucial September 1950 military operation that helped the UN and ROK gain the upper hand over North Korea in the Korean War.

The inside story of the ultimate stealth fighter, the F-22 Raptor, and its predecessors.

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

Witness the devastating impact of the German blitzkrieg as new tank strategies take the world by storm. Learn how Germany overcame the inferiority of its panzers and swept through Poland and France with innovations in logistics and strategy.

The inside story of the ultimate stealth fighter, the F-22 Raptor, and its predecessors.

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

Examine how German soldiers used an erotic painting and other decoys to distract their captors as they tunnelled out of Island Farm POW camp in Wales; see how American bombardiers were smuggled out of Russia, and study a wartime Trojan Horse plot.

In the autumn of 1944, Patton's Third Army approaches the heavily fortified region of Metz; after being turned back from Fort Driant, Patton's men target Fort Koenigsmacker a month later.

When an infant is discovered dead in the River Thames, police uncover a dark underworld, where society's most vulnerable are being exploited.

Examine how German soldiers used an erotic painting and other decoys to distract their captors as they tunnelled out of Island Farm POW camp in Wales; see how American bombardiers were smuggled out of Russia, and study a wartime Trojan Horse plot.

In the autumn of 1944, Patton's Third Army approaches the heavily fortified region of Metz; after being turned back from Fort Driant, Patton's men target Fort Koenigsmacker a month later.

When an infant is discovered dead in the River Thames, police uncover a dark underworld, where society's most vulnerable are being exploited.

The inside story of the ultimate stealth fighter, the F-22 Raptor, and its predecessors.

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

Witness the devastating impact of the German blitzkrieg as new tank strategies take the world by storm. Learn how Germany overcame the inferiority of its panzers and swept through Poland and France with innovations in logistics and strategy.

The inside story of the ultimate stealth fighter, the F-22 Raptor, and its predecessors.

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.

Witness animal spectacles from high above the Earth; watch a whirling herd of northern nomads; see undersea behemoths show off in the Pacific shallows; track a U.S. porcine stampede; confront top ocean predators on the Florida coast.

Bundles of cedar wood tree trunks are smashed apart, releasing thousands of logs on the shoreline; Jeremy and his crew must work fast to recover the cargo.

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.

Witness animal spectacles from high above the Earth; watch a whirling herd of northern nomads; see undersea behemoths show off in the Pacific shallows; track a U.S. porcine stampede; confront top ocean predators on the Florida coast.

How humans discovered the planets and how they became a complex solar system.

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A look at key naval battles that have taken place in the Persian Gulf over the last 50 years and the warships involved, from both sides of the conflicts.

New high-tech investigations uncover what sunk a World War I cruiser, a World War II submarine, a British destroyer from the Falklands War, and more.

Examine how German soldiers used an erotic painting and other decoys to distract their captors as they tunnelled out of Island Farm POW camp in Wales; see how American bombardiers were smuggled out of Russia, and study a wartime Trojan Horse plot.

In the autumn of 1944, Patton's Third Army approaches the heavily fortified region of Metz; after being turned back from Fort Driant, Patton's men target Fort Koenigsmacker a month later.

When an infant is discovered dead in the River Thames, police uncover a dark underworld, where society's most vulnerable are being exploited.

Examine how German soldiers used an erotic painting and other decoys to distract their captors as they tunnelled out of Island Farm POW camp in Wales; see how American bombardiers were smuggled out of Russia, and study a wartime Trojan Horse plot.

In the autumn of 1944, Patton's Third Army approaches the heavily fortified region of Metz; after being turned back from Fort Driant, Patton's men target Fort Koenigsmacker a month later.

When an infant is discovered dead in the River Thames, police uncover a dark underworld, where society's most vulnerable are being exploited.

On inadequate foundations, San Francisco's MoMA triples in size creating an exterior light enough to prevent collapse; a 1970s Sydney skyscraper is recycled into a 21st century tower; in Dallas, a five-acre park is created.

Mike joins the Assault Craft Unit 5, the U.S. Navy's team for Landing Craft Air Cushions (LCACs); LCACs carry heavy vehicles and troops onto beaches; Mike helps fly & fix an overhauled LCAC during a U.S. Marines beach assault training mission.

A mission to haul hefty cargo across Switzerland to the Netherlands, going through four countries with critical repairs at every turn.

On inadequate foundations, San Francisco's MoMA triples in size creating an exterior light enough to prevent collapse; a 1970s Sydney skyscraper is recycled into a 21st century tower; in Dallas, a five-acre park is created.

Mike joins the Assault Craft Unit 5, the U.S. Navy's team for Landing Craft Air Cushions (LCACs); LCACs carry heavy vehicles and troops onto beaches; Mike helps fly & fix an overhauled LCAC during a U.S. Marines beach assault training mission.

A mission to haul hefty cargo across Switzerland to the Netherlands, going through four countries with critical repairs at every turn.

When an infant is discovered dead in the River Thames, police uncover a dark underworld, where society's most vulnerable are being exploited.

Examine how German soldiers used an erotic painting and other decoys to distract their captors as they tunnelled out of Island Farm POW camp in Wales; see how American bombardiers were smuggled out of Russia, and study a wartime Trojan Horse plot.

In the autumn of 1944, Patton's Third Army approaches the heavily fortified region of Metz; after being turned back from Fort Driant, Patton's men target Fort Koenigsmacker a month later.

When an infant is discovered dead in the River Thames, police uncover a dark underworld, where society's most vulnerable are being exploited.

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.

Get a bird's-eye view of a mysterious explosion in China and a quickly melting glacier on Earth's iciest continent; investigate an orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand.

Arctic conditions continue to wreak havoc in British Columbia; Jeremy Birch is called upon to raise a concrete-hulled vessel.

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.

Get a bird's-eye view of a mysterious explosion in China and a quickly melting glacier on Earth's iciest continent; investigate an orange haze enveloping the Big Apple, then float over a toxic, too-hot-to-handle lake in New Zealand.

Arctic conditions continue to wreak havoc in British Columbia; Jeremy Birch is called upon to raise a concrete-hulled vessel.

The first great empire of the Akkadians, led by Sargon the Great, dominated the Fertile Crescent, replacing the Sumerians and extending its influence as far north as Syria and south as Oman.

Examine a unique silver scroll found in a collapsed Umayyad-period house in Jerash, Jordan; watch an advanced CT scanner penetrate its lead casing, revealing mysterious grooves and an enigmatic message that suggests it may be a protective amulet.

On inadequate foundations, San Francisco's MoMA triples in size creating an exterior light enough to prevent collapse; a 1970s Sydney skyscraper is recycled into a 21st century tower; in Dallas, a five-acre park is created.

Mike joins the Assault Craft Unit 5, the U.S. Navy's team for Landing Craft Air Cushions (LCACs); LCACs carry heavy vehicles and troops onto beaches; Mike helps fly & fix an overhauled LCAC during a U.S. Marines beach assault training mission.

A mission to haul hefty cargo across Switzerland to the Netherlands, going through four countries with critical repairs at every turn.

On inadequate foundations, San Francisco's MoMA triples in size creating an exterior light enough to prevent collapse; a 1970s Sydney skyscraper is recycled into a 21st century tower; in Dallas, a five-acre park is created.

Mike joins the Assault Craft Unit 5, the U.S. Navy's team for Landing Craft Air Cushions (LCACs); LCACs carry heavy vehicles and troops onto beaches; Mike helps fly & fix an overhauled LCAC during a U.S. Marines beach assault training mission.

A mission to haul hefty cargo across Switzerland to the Netherlands, going through four countries with critical repairs at every turn.