Experts investigate the US government's experiments into teleportation. They also dig into strange happenings at Mount Shasta and Skinwalker ranch.

Did a canoer film the legendary Skunk Ape walking in gator-infested waters.

In the early hours of 6 June 1944, Allied forces began the greatest military assault ever attempted. Here, the story of the liberation of Europe is revealed.

Allen and Ton take on an old foe at a container auction to get their hands on a mint 1800s pistol and a collection of 90s remote-controlled combat robots.

Researchers claim hidden messages can be found within the works of Leonardo da Vinci that may reveal an extraterrestrial influence.

Aliens And The Creation Of Man: Can unexplained advances in human evolution be attributed to alien architects? Alien theorists look at the evidence.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Dan visits one of Northern Ireland's oldest castles, Carrickfergus, to learn more about the tempestuous relationship between Britain and Ireland.

Hugh and the team solve a 17th-century mystery in King's Lynn as they hunt for defensive earthworks from the English Civil War.

The American frontier is full of legends of cowboys, Native Americans, and outlaws. But what about the tales of cursed mountains, monsters and even UFOs.

Experts investigate the US government's experiments into teleportation. They also dig into strange happenings at Mount Shasta and Skinwalker ranch.

Did a canoer film the legendary Skunk Ape walking in gator-infested waters.

In the early hours of 6 June 1944, Allied forces began the greatest military assault ever attempted. Here, the story of the liberation of Europe is revealed.

The New Frontier: With science closer than ever to proving that life once lived on Mars, is there a chance that something still exists there.

The US had to beat the Nazis in the race to create an atomic bomb, so they built many secret nuclear facilities. Here, the controversial sites are re-created.

Roman emperor Titus plans 100 days of games to commemorate the Colosseum's completion in 80 AD, including a fight to the death between Priscus and Verus.

Researchers claim hidden messages can be found within the works of Leonardo da Vinci that may reveal an extraterrestrial influence.

Aliens And The Creation Of Man: Can unexplained advances in human evolution be attributed to alien architects? Alien theorists look at the evidence.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Dan visits one of Northern Ireland's oldest castles, Carrickfergus, to learn more about the tempestuous relationship between Britain and Ireland.

Hugh and the team solve a 17th-century mystery in King's Lynn as they hunt for defensive earthworks from the English Civil War.

Allen and Ton take on an old foe at a container auction to get their hands on a mint 1800s pistol and a collection of 90s remote-controlled combat robots.

A desert auction in Palm Springs gives the guys a 70s sandrail dune racer and a 1965 replica Mustang pool table. But how much can they flog them for.

Taking place 110 miles behind enemy lines in a treacherous harbour, the Korean War's Battle of Incheon was one of the riskiest assaults in history.

Today, we tend to think that our scientific knowledge can help protect us from almost anything, including natural disasters. But is that really true.

Three places, three spooky stories. Experts examine weird sightings and unsolved disappearances at Bennington, Bermuda and Bridgewater triangles.

Did a filmmaker capture a mammoth crossing a Siberian river? Tony Harris examines clues to determine its validity.

The Battle of the Beaches: Retrace the 100 days of battle as the Allies liberated Normandy, broke through the German line and paved the way towards victory.

The Normandy Campaign: Retrace the 100 days of battle as the Allies liberated Normandy, broke through the German line and paved the way towards victory.

In 2017, a strange, cigar-shaped object enters the solar system, causing some astronomers to suggest that it could be an extraterrestrial craft.

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Part One: Uncover the turmoil of 12th-century Ireland, where Kings vie for supremacy and powerful people drive a rival into exile - who then seeks help from Henry II.

Hugh and the team go on the hunt for the Morda Workhouse in Oswestry, to find out what the conditions were really like for those who lived there.

Today, we tend to think that our scientific knowledge can help protect us from almost anything, including natural disasters. But is that really true.

Three places, three spooky stories. Experts examine weird sightings and unsolved disappearances at Bennington, Bermuda and Bridgewater triangles.

Did a filmmaker capture a mammoth crossing a Siberian river? Tony Harris examines clues to determine its validity.

The Battle of the Beaches: Retrace the 100 days of battle as the Allies liberated Normandy, broke through the German line and paved the way towards victory.

The Normandy Campaign: Retrace the 100 days of battle as the Allies liberated Normandy, broke through the German line and paved the way towards victory.

A half-bull, half-man, the Minotaur is one of mythology's terrifying monsters. It's a bizarre tale of bestiality and human sacrifice - but what is the real-life origin.

His epic battles with Grendel and his mother have made Beowulf the Viking world's most famous warrior. But could this mythological hero have been based on a real person.

In 2017, a strange, cigar-shaped object enters the solar system, causing some astronomers to suggest that it could be an extraterrestrial craft.

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Part One: Uncover the turmoil of 12th-century Ireland, where Kings vie for supremacy and powerful people drive a rival into exile - who then seeks help from Henry II.

Hugh and the team go on the hunt for the Morda Workhouse in Oswestry, to find out what the conditions were really like for those who lived there.

The guys stumble on a laser tag system used for military training and an angler's fighting chair from the 70s. But the latter is in dire need of a refurb.

In San Diego, the guys get thrown a 50s pitching machine. They also rescue a Jaws of Life tool from the 80s.

Follow the major operations that have taken place in the Persian Gulf - from Earnest Will to Desert Storm - and examine the combat vessels from both sides.

All over the world, there are giant monoliths that our ancient ancestors carved out of solid rock. But what was the purpose of these huge stone monuments.

What did UFO chaser Captain Mantell see before he was killed? Plus, experts investigate a close encounter in Texas and a mysterious crash at Shag Harbour.

Did an Italian reconnaissance pilot capture genuine UFO photos in 1979.

During WWII, soldiers from the British Empire, Belgium and France tried to evacuate from the town of Dunkirk during a arduous battle with German forces. This film explores the story.

Marking the 75th anniversary of D-Day, a special documentary explores the world-changing event through the incredible images and recollections of veteran photographers.

Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code.

Could Area 51's notoriety act as a cover up to much bigger, top-secret extraterrestrial experiments taking place at multiple locations.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Part Two: Follow the course of the invasion as Strongbow wins victory after victory, while Henry II arrives to take control of Ireland and grants land to settlers from Britain.

Hugh and the team search for a monastic grange known as Biggin Hall, which provided produce for the nearby monks at St Mary's Priory.

All over the world, there are giant monoliths that our ancient ancestors carved out of solid rock. But what was the purpose of these huge stone monuments.

What did UFO chaser Captain Mantell see before he was killed? Plus, experts investigate a close encounter in Texas and a mysterious crash at Shag Harbour.

Did an Italian reconnaissance pilot capture genuine UFO photos in 1979.

During WWII, soldiers from the British Empire, Belgium and France tried to evacuate from the town of Dunkirk during a arduous battle with German forces. This film explores the story.

Marking the 75th anniversary of D-Day, a special documentary explores the world-changing event through the incredible images and recollections of veteran photographers.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

The things that once represented our favourite times of year meet their demise, from Christmas trees and roller coasters, to high-end resorts and cruise ships.

Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code.

Could Area 51's notoriety act as a cover up to much bigger, top-secret extraterrestrial experiments taking place at multiple locations.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Part Two: Follow the course of the invasion as Strongbow wins victory after victory, while Henry II arrives to take control of Ireland and grants land to settlers from Britain.

Hugh and the team search for a monastic grange known as Biggin Hall, which provided produce for the nearby monks at St Mary's Priory.

Ton and Allen discover a 40s embalming pump and one of the first electric bone saws. They also find a shark cage, but is it safe to use.

A fellow buyer tests Ton and Allen's patience at a container auction in Ventura, where they discover parts of a hot air balloon and a 19th-century rifle.

Uncover the truth behind some of history's most mysterious sinkings, from a sunken World War I cruiser to a British Destroyer from the Falklands War.

Throughout time, people have believed mountains were the home of the divine. But could these hilltop spirits have been extraterrestrials.

The Tesla Experiment. Giorgio A Tsoukalos draws on evidence from past series as he asks whether Nikola Tesla was communicating with extraterrestrials.

The Battle of the Beaches: Retrace the 100 days of battle as the Allies liberated Normandy, broke through the German line and paved the way towards victory.

The Normandy Campaign: Retrace the 100 days of battle as the Allies liberated Normandy, broke through the German line and paved the way towards victory.

Hidden In Plain Sight 1935-1938: In 1934, Hitler's government is firmly in the saddle. Most Germans support Hitler's anti-Jewish policy and the regime's terror soon escalates.

Up in Flames 1936-1940: At the end of 1939, the German Army invades Poland. Examine how Hitler succeeded in pushing through his rearmament and war plans relatively unhindered.

Bloody Resolve: Series highlighting what life was really like on the frontlines during WWII. In Tarawa, mechanical failure leads to one of the bloodiest battles in the Pacific.

An elite force of Norwegian resistance fighters return to their invaded homeland to carry out a daring mission.

From December 1941 to May 1942, Singapore falls, the Wannsee Conference is held in Berlin and a single event in the Pacific transforms the war into a total global conflict.

The USS Enterprise is the only battle-ready American carrier in the Pacific. For her crew, the war has never been more personal when the Japanese attack.

The USS Enterprise became the first ship to receive the Presidential Unit Citation in WWII, following its mission during the bloody Gilbert invasion.

Hidden In Plain Sight 1935-1938: In 1934, Hitler's government is firmly in the saddle. Most Germans support Hitler's anti-Jewish policy and the regime's terror soon escalates.

Up in Flames 1936-1940: At the end of 1939, the German Army invades Poland. Examine how Hitler succeeded in pushing through his rearmament and war plans relatively unhindered.

Infamy: By June 1941, Hitler controlled most of Europe, but the USSR resisted invasion. Then Pearl Harbor changed everything.

History's most acclaimed prophet, Nostradamus, saw the arrival of three Antichrists that would plague mankind. But who are they.

Did an Italian reconnaissance pilot capture genuine UFO photos in 1979.

The Royals and the Ripper: With evidence from historians, police officers and experts, discover whether Prince Albert Victor was really Jack the Ripper.

Throughout time, people have believed mountains were the home of the divine. But could these hilltop spirits have been extraterrestrials.

The Tesla Experiment. Giorgio A Tsoukalos draws on evidence from past series as he asks whether Nikola Tesla was communicating with extraterrestrials.

While the excavation continues, Peter and Elroy go back to their investigation to clear Olof's name. A Native American professor schools them on his tribe.

Journey back in time and explore the world of the mega-rich gourmands, who spent epic sums in pursuit of the rarest, most forbidden food and drink could buy.

Peer into the extraordinary world of the monarchs and millionaires who spent their fortunes collecting wild animals.

From December 1941 to May 1942, Singapore falls, the Wannsee Conference is held in Berlin and a single event in the Pacific transforms the war into a total global conflict.

An elite force of Norwegian resistance fighters return to their invaded homeland to carry out a daring mission.

Colditz Castle, The Great Escape and the bold Warburg Wire Job.

Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World. Is there more to the US's past than history books suggest.

Alien Power Plants: Giorgio Tsoukalos draws on evidence from past series as he asks whether aliens introduced the Greeks and Egyptians to electricity.

Allen and Ton take on an old foe at a container auction to get their hands on a mint 1800s pistol and a collection of 90s remote-controlled combat robots.

In the early hours of 6 June 1944, Allied forces began the greatest military assault ever attempted. Here, the story of the liberation of Europe is revealed.

In the early hours of 6 June 1944, Allied forces began the greatest military assault ever attempted. Here, the story of the liberation of Europe is revealed.

The Gates of Hell 1941-1942: In the shadow of the war, the Nazi regime gradually advances its "final solution to the Jewish problem", culminating in the Holocaust.

Genocide 1942-1944: Along with Treblinka and Majdanek, Sobibor was one of the camps used in Operation Reinhard, in which the Nazis murdered almost two million people.

Battle Stations: It's 1944 and the Allies are planning the invasion of France. For pilot Bert Stiles that means joining the decimated 8th Air Force to clear the Normandy skies.

On the outskirts of Bouerat Harbor in Libya, a small group of British special forces prepare to destroy a crucial German fuel depot.

By Spring 1942, German armies had taken control, the battles of Midway and Stalingrad begin and American's achieve a ground-breaking milestone in the development of atomic weapons.

Follow the events of 1944, as the USS Enterprise and the Carrier Task Force push through the Pacific, hammering the enemy bases at Kwajalein and Truk Lagoon.

While the Allies storm France, American forces hit the Marianas Islands and the Enterprise supports one of the most deadly battles of the Pacific War.

The Gates of Hell 1941-1942: In the shadow of the war, the Nazi regime gradually advances its "final solution to the Jewish problem", culminating in the Holocaust.

Genocide 1942-1944: Along with Treblinka and Majdanek, Sobibor was one of the camps used in Operation Reinhard, in which the Nazis murdered almost two million people.

A Dream of Great Success: After the attack on Pearl Harbor, the Japanese army celebrated its victory. Four months later, the Battle of the Coral Sea shakes their confidence.

The things that once represented our favourite times of year meet their demise, from Christmas trees and roller coasters, to high-end resorts and cruise ships.

Italy and the UK: Visiting a village in Calabria, Ross discovers the true extent of the mafia's powers - before meeting the daughter of an Italian mob boss.

Roman emperor Titus plans 100 days of games to commemorate the Colosseum's completion in 80 AD, including a fight to the death between Priscus and Verus.

Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World. Is there more to the US's past than history books suggest.

Alien Power Plants: Giorgio Tsoukalos draws on evidence from past series as he asks whether aliens introduced the Greeks and Egyptians to electricity.

A team of archaeologists embark on a quest to unearth the most treasured and famous artefact in human history, rumoured to be buried beneath Jerusalem.

Attila and his violent tribe of nomad warriors known as the Huns.

By Spring 1942, German armies had taken control, the battles of Midway and Stalingrad begin and American's achieve a ground-breaking milestone in the development of atomic weapons.

On the outskirts of Bouerat Harbor in Libya, a small group of British special forces prepare to destroy a crucial German fuel depot.

A daring dash through Nazi Europe, a deadly mountain escape and WWII's largest breakout, by men who chose death over dishonour.

Ever wondered about bizarre things that fall from the sky? From meteorites to seafood, the stories are truly unbelievable.

Were Betty and Barney Hill really abducted by aliens? Experts investigate. They also explore the mystery of The Mothman, and Travis Walton's disappearance.

What's up with the recent trend in flying sphere sightings and should we be concerned.

Colditz Castle, The Great Escape and the bold Warburg Wire Job.

A daring dash through Nazi Europe, a deadly mountain escape and WWII's largest breakout, by men who chose death over dishonour.

Following a 2017 public disclosure of secret government UFO investigations, are we any closer to proving there has been a UFO conspiracy.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Karl and Kevin explore how weapons and armour developed, starting with the 1645 Battle of Naseby during the English Civil War.

Hugh and the team search for the house of the head of the Elizabethan Secret Service, Sir Frances Walsingham, to find out what this spymaster used it for.

Ever wondered about bizarre things that fall from the sky? From meteorites to seafood, the stories are truly unbelievable.

Were Betty and Barney Hill really abducted by aliens? Experts investigate. They also explore the mystery of The Mothman, and Travis Walton's disappearance.

What's up with the recent trend in flying sphere sightings and should we be concerned.

Colditz Castle, The Great Escape and the bold Warburg Wire Job.

A daring dash through Nazi Europe, a deadly mountain escape and WWII's largest breakout, by men who chose death over dishonour.

Death of the Old Rules: Follow the American Mafia from their early development in New York City neighbourhoods, discovering how public violence affected their operations.

Following a 2017 public disclosure of secret government UFO investigations, are we any closer to proving there has been a UFO conspiracy.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Karl and Kevin explore how weapons and armour developed, starting with the 1645 Battle of Naseby during the English Civil War.

Hugh and the team search for the house of the head of the Elizabethan Secret Service, Sir Frances Walsingham, to find out what this spymaster used it for.

Ton and Allen teach a cocky new auction hunter a lesson. Then, they get their hands on a hot rod made out of a World War II fighter plane.

The guys encounter aggressive outdoorsmen in the wilderness. Later they discover an amphibious ATV and a hammer that can drill through solid rock.

From the broadside cannons of 16th-century warships to thermonuclear warheads aboard Cold War subs, the naval arms race continues to evolve at a rapid pace.

Explore the Lake Michigan Triangle's mysteries, eerie doll islands, explosive gas lakes, virus-filled caves and haunted US locations.

A new and shocking theory could explain one of America's most famous unsolved crimes - the disappearance of aviator Charles Lindbergh's 20-month-old son.

The team will explore theories about this mysterious sighting, aiming to uncover the truth behind a possible UFO.

a German breakout, a US bomber crew's Soviet secret and the Trojan Horse of Stalag Luft III.

A Russian soldier's daring escape from a Nazi death camp, a bold plan from a Japanese prison and pilots winning their enemies' respect.

Ancient Astronaut theorist Giorgio A. Tsoukalos explores the latest evidence that suggests extraterrestrials visited Egypt in the distant past.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Exploring the impact of the Battle of Towton during the War of the Roses, Karl and Kevin continue their look at how weapons and body armour developed.

US YouTube sensation Beau Ouimette and presenter Rick Edwards visit a range of historically significant sites in search of incredible archaeological finds.

Explore the Lake Michigan Triangle's mysteries, eerie doll islands, explosive gas lakes, virus-filled caves and haunted US locations.

A new and shocking theory could explain one of America's most famous unsolved crimes - the disappearance of aviator Charles Lindbergh's 20-month-old son.

The team will explore theories about this mysterious sighting, aiming to uncover the truth behind a possible UFO.

a German breakout, a US bomber crew's Soviet secret and the Trojan Horse of Stalag Luft III.

A Russian soldier's daring escape from a Nazi death camp, a bold plan from a Japanese prison and pilots winning their enemies' respect.

The Templars: It's believed the Knights Templar owned vast swathes of land, commanded fleets, and lent money to kings. How do we separate the facts from the fiction.

John A. Kantara proves that lies have always been part of warfare, exploring the role of propaganda in spreading one's truth.

Ancient Astronaut theorist Giorgio A. Tsoukalos explores the latest evidence that suggests extraterrestrials visited Egypt in the distant past.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Exploring the impact of the Battle of Towton during the War of the Roses, Karl and Kevin continue their look at how weapons and body armour developed.

US YouTube sensation Beau Ouimette and presenter Rick Edwards visit a range of historically significant sites in search of incredible archaeological finds.

Ton and Allen go north to Alaska and find two enormous seaplane pontoons and a pair of Smith & Wesson revolvers.

Ton and Allen get a surprise second chance and uncover a 1960s motorised railroad maintenance car and a pre-WWI Japanese semi-automatic pistol.

Speed is always vital in naval combat, so buckle up and examine maritime warfare's fastest and most furious vessels of the last 150 years.

Have you heard about the warrior bear who helped the allies win WWII? Explore the unbelievable stories of the planet's most fantastic beings.

In 1955, a family of seven in Kentucky fired their guns on an alleged alien attack. But what did they really see.

Investigate videos, photos and audio of UFOs and conspiracies, using experts to separate hoaxes from credible evidence.

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.

Discover Hitler's last soldier in America who defied the FBI for 40 years, the prisoners who revealed the secrets of the death camps and the merciless Nazi who almost got away.

Are intelligent robots the next step in human evolution? As man and machine begin to merge, are we fulfilling a destiny prepared for us by aliens.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Exploring the impact of the Battle of Hastings in 1066, Karl and Kevin continue their look at how weapons and body armour developed.

Presenter Rick Edwards and US YouTube sensation and river detectorist Beau Ouimette travel to Warwick on the hunt for incredible archaeological finds.

Have you heard about the warrior bear who helped the allies win WWII? Explore the unbelievable stories of the planet's most fantastic beings.

In 1955, a family of seven in Kentucky fired their guns on an alleged alien attack. But what did they really see.

Investigate videos, photos and audio of UFOs and conspiracies, using experts to separate hoaxes from credible evidence.

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.

Discover Hitler's last soldier in America who defied the FBI for 40 years, the prisoners who revealed the secrets of the death camps and the merciless Nazi who almost got away.

Legend has it that this ancient civilisation was wiped out by a volcanic eruption, but could the discovery of spectacular palaces in Crete and Santorini challenge the theory.

Emperor Domitian tasks master builder Haterius with constructing a labyrinth underneath the Colosseum floor.

Are intelligent robots the next step in human evolution? As man and machine begin to merge, are we fulfilling a destiny prepared for us by aliens.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Exploring the impact of the Battle of Hastings in 1066, Karl and Kevin continue their look at how weapons and body armour developed.

Presenter Rick Edwards and US YouTube sensation and river detectorist Beau Ouimette travel to Warwick on the hunt for incredible archaeological finds.

Ton and Allen discover a Zildjian-brand percussion cymbal from the 1940s and a control board designed for large-scale fireworks displays.

The guys are forced to bid high at a busy auction in New Orleans. They unearth a pair of duelling pistols and a vintage airboat, but can they make a profit.

Discover some of the combat ships that played key parts in river warfare, from Harriet Tubman's successful gunboat to the high-speed PBRs of Vietnam.

Discover bizarre innovations like a fully functioning car that hovers in midair. Or clothing made out of everyone's favorite source of calcium.

The hunt is on for the Civil War Gold and for $1.5million taken in 1962's Plymouth Mail robbery. Plus, treasure seekers search for the Lost Dutchman mine.

Did a retired Army officer find anomalies in NASA solar photos? Could a giant shark hint at megalodons.

The race to develop the first atomic bomb was critical amid the struggle for WWII victory. Experts reveal new evidence behind Germany's top-secret development of nuclear weapons.

In the final months of WWII, how close were the Nazis and Japan to creating the nuclear explosion that would win the war? Experts and historians examine the evidence.

As humanity prepares to establish colonies beyond Earth, are we pursuing a new future for mankind or returning to its extraterrestrial past.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Presenter Karl Ude-Martinez takes a tour of the weapons used during the Battle of the Somme in 1916, including machine guns and poison gas.

River detectorist turned YouTube sensation Beau Ouimette and presenter Rick Edwards search for underwater archaeological finds tied to the Civil War.

Discover bizarre innovations like a fully functioning car that hovers in midair. Or clothing made out of everyone's favorite source of calcium.

The hunt is on for the Civil War Gold and for $1.5million taken in 1962's Plymouth Mail robbery. Plus, treasure seekers search for the Lost Dutchman mine.

Did a retired Army officer find anomalies in NASA solar photos? Could a giant shark hint at megalodons.

During WWII, soldiers from the British Empire, Belgium and France tried to evacuate from the town of Dunkirk during a arduous battle with German forces. This film explores the story.

Marking the 75th anniversary of D-Day, a special documentary explores the world-changing event through the incredible images and recollections of veteran photographers.

Homer's The Odyssey is the most famous epic ever written - a story of a 20-year journey to return home from war. But could it actually have happened.

Continue the story of Odysseus, a timeless tale of adventure filled with mythological beasts and vengeful gods. But could it actually have happened.

As humanity prepares to establish colonies beyond Earth, are we pursuing a new future for mankind or returning to its extraterrestrial past.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Presenter Karl Ude-Martinez takes a tour of the weapons used during the Battle of the Somme in 1916, including machine guns and poison gas.

River detectorist turned YouTube sensation Beau Ouimette and presenter Rick Edwards search for underwater archaeological finds tied to the Civil War.

The guys find an antique barber chair, two racing lawnmowers and a voodoo chest at an auction in Louisiana, but their potential buyers drive a hard bargain.

Ton and Allen invade the nation's capital, but meet strong resistance from local bidders.

Many fearless captains have led their ships into battle over the centuries, so celebrate some of history's greatest maritime heroes.

Showcasing bizarre and unconventional weapons, explore the incredible stories behind the most outlandish creations in warfare.

Could an ex-cop have solved the mystery of Jimmy Hoffa's disappearance? Plus, experts investigate whether J F Kennedy's brain might have gone missing.

Tony Harris separates the real from the fake in some of the most compelling Bigfoot evidence recently captured, including huge primate-like footprints.

The story of Hitler and his penchant for barbarism and destruction, starting with his surprise Russian invasion and the anarchy that followed.

The story of Hitler and his penchant for barbarism and destruction, starting with his surprise Russian invasion and the anarchy that followed.

Erich von Daniken's "Chariots of the Gods?" suggests that aliens visited Earth in the past. 50 years after the book's publication, can he be proven right.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Revisiting the bloody British uprising against the Romans, presenter Karl Ude-Martinez tests out swords, spears and armour.

Rick Edwards joins YouTuber and detectorist Beau Ouimette on an underwater hunt for lost treasures linked to the ancient Vikings.

Showcasing bizarre and unconventional weapons, explore the incredible stories behind the most outlandish creations in warfare.

Could an ex-cop have solved the mystery of Jimmy Hoffa's disappearance? Plus, experts investigate whether J F Kennedy's brain might have gone missing.

Tony Harris separates the real from the fake in some of the most compelling Bigfoot evidence recently captured, including huge primate-like footprints.

The story of Hitler and his penchant for barbarism and destruction, starting with his surprise Russian invasion and the anarchy that followed.

The story of Hitler and his penchant for barbarism and destruction, starting with his surprise Russian invasion and the anarchy that followed.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

The most important planes in history are grounded with no humans around to fly them, including Air Force One, which suffers an explosive malfunction.

Erich von Daniken's "Chariots of the Gods?" suggests that aliens visited Earth in the past. 50 years after the book's publication, can he be proven right.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Revisiting the bloody British uprising against the Romans, presenter Karl Ude-Martinez tests out swords, spears and armour.

Rick Edwards joins YouTuber and detectorist Beau Ouimette on an underwater hunt for lost treasures linked to the ancient Vikings.

An unassuming mum tries to pull the wool over Ton and Allen's eyes in Arlington, Virginia. The guys uncover a 15th century black powder cannon.

Ton and Allen contend with a crowd of inexperienced auction-buyers in Pasadena. They also find a small fleet of Segway personal transporter.

Combat ships are built to survive, but some blasts are simply too powerful. Dive in and revisit some of the most spectacular explosions in maritime history.

Experts investigate remote ruins, mysterious caves and legendary mountain portals. Could these alleged stargates have brought ancient aliens to Earth.

The Mystery of Puma Punku. Experts in the extra-terrestrial examine the Inca ruin and its mysteriously intricate carved blocks.

We are at War: The German invasion of Poland starts and Jews face segregation. Mussolini allies with Hitler, Churchill is appointed UK PM and Germany invades France.

Shall We Go On: Germany builds its empire in Europe, aiming to crush Britain with the Luftwaffe while France is conquered and divided as Churchill rejects peace.

Armageddon 1943-1945: The defeat at Stalingrad in 1943 was the turning point of the war and convinced the Nazi leadership to intensify their terror and propaganda campaigns.

The Reckoning 1945-1948: In 1945, WWII was over but the violence had not ended. The survivors want to blame the Germans. The reckoning with National Socialism is ambivalent.

Day Of Days: America is on the offensive, but fighting on the Normandy beaches is ferocious and victory will not come quickly, especially for Lt Charles Scheffel.

It's July 10, 1943 and the Allied Forces have evicted the Axis Powers from North Africa and can finally begin the Italian Campaign.

1943 begins with the Casablanca Conference. Events unfold in the week of the Soviet victory in Stalingrad, and one of the best-selling songs in history is released.

Follow the events as the USS Enterprise engages in one of the largest sea battles of the war.

As the US Navy closes in on Okinawa and the Japanese homeland, the Empire unleashes a hellish weapon. Will the Enterprise survive the Kamikaze.

Armageddon 1943-1945: The defeat at Stalingrad in 1943 was the turning point of the war and convinced the Nazi leadership to intensify their terror and propaganda campaigns.

The Reckoning 1945-1948: In 1945, WWII was over but the violence had not ended. The survivors want to blame the Germans. The reckoning with National Socialism is ambivalent.

I Shall Never Look Back: At the beginning of 1942, war wages on the battlefields in Eastern Europe, North Africa and Asia Pacific.

John A. Kantara proves that lies have always been part of warfare, exploring the role of propaganda in spreading one's truth.

After four years of horror on the battlefield, the Allies are in danger of losing to Germany. General John J Pershing races to train the untested American Army.

Experts investigate remote ruins, mysterious caves and legendary mountain portals. Could these alleged stargates have brought ancient aliens to Earth.