Discover some of history's most ground-breaking vessels, from Britain's HMS Warrior of 1860 to the German battlecruisers of WWII.

Mike works at remote locations for his rock scaling business, while trying to manage the shop's restoration of a 1969 Road Runner convertible from afar.

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

Experts comb history for evidence of children with strange abilities and great knowledge. Could these young people have been born from ancient aliens.

Victims and police discuss the shocking crimes of entertainer Rolf Harris, who was jailed for a number of sexual offences in 2014. Dermot Murnaghan presents.

Drug dealer Dale Cregan hit the headlines in 2012 when he murdered police officers Nicola Hughes and Fiona Bone. Dermot Murnaghan examines the tragic case.

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

Finds from the East include a monument as old as Stonehenge and some disturbing Roman burials.

The team search for remains of the crashed WWII Spitfire and discover parts of the cockpit.

The Vikings: Comedian John Thomson and historian Janina Ramirez join Al to explore the truth about Vikings and how they were so successful in Britain.

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

Experts comb history for evidence of children with strange abilities and great knowledge. Could these young people have been born from ancient aliens.

After settlers encroach on Native lands, Miami Chief Little Turtle leads the Northwest Confederacy to victory over US forces.

John Colter, famed hunter, joins the fur trade. Ignoring Blackfeet warnings about hunting sacred beaver on their land, he's captured and must run for his life.

Venture into the unknown stories of the American frontier and the anonymous Black figures that have inspired countless Hollywood tales, yet have been erased from the silver screen.

In the wake of the Civil War, American settlers flood into the Great Plains, seizing Native American land as they go.

Discover a real Chinese curse, a Founding Father's basement of bone and a deadly island hiding world-ending pathogens. Truth is stranger than fiction.

The sun's been worshipped since time began. Could unlocking its mysteries be the difference between life and death.

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

Experts comb history for evidence of children with strange abilities and great knowledge. Could these young people have been born from ancient aliens.

In 1941, Germany launched Operation Barbarossa, a savage attack on the Soviet Union. Witness Hitler's dream to conquer Moscow through newly colourised film.

During his time in charge, Himmler made the study of runes - letters of ancient Germanic writing - obligatory for SS officers in the belief they held powers.

We learn about life on a Tudor ship from objects found on the Mary Rose, while on HMS Victory we learn the battle-winning tactics of Admiral Nelson.

Win Every War. Germany: Al joins forces with German comedian Henning Wehn to delve deeper into the truth behind some World War II myths.

Look down over a constant inferno in Turkmenistan, mysterious circles in the Namibian desert and secret electric blue ponds in Utah.

Across the world, there are stories of treasures that have been lost for centuries. Could these ancient relics have been hidden by extraterrestrials.

Experts question what probes on Mars may have found over the past 40 years. Could NASA be hiding proof of life on the Red Planet from the public.

Alice Roberts shares archaeological discoveries from the west of the UK, including a Roman bath house and a German camp.

Finds from the East include a monument as old as Stonehenge and some disturbing Roman burials.

Alice Roberts follows archaeologists as they excavate Iron Age Britain's most spectacular grave - a Yorkshire chariot burial.

After settlers encroach on Native lands, Miami Chief Little Turtle leads the Northwest Confederacy to victory over US forces.

John Colter, famed hunter, joins the fur trade. Ignoring Blackfeet warnings about hunting sacred beaver on their land, he's captured and must run for his life.

With the help of experts, Rob reveals the events leading up to Robert the Bruce's famous victory against the English forces.

Across the world, there are stories of treasures that have been lost for centuries. Could these ancient relics have been hidden by extraterrestrials.

Experts question what probes on Mars may have found over the past 40 years. Could NASA be hiding proof of life on the Red Planet from the public.

Dr Alice Roberts reveals the forgotten story of the Roman Army's cavalry as she journeys across Hadrian's Wall.

The team search for remains of the crashed WWII Spitfire and discover parts of the cockpit.

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

Venture into the unknown stories of the American frontier and the anonymous Black figures that have inspired countless Hollywood tales, yet have been erased from the silver screen.

Every inexplicable flash or strange aircraft makes us believe we've spotted extraterrestrials - but what if they've been watching us all along.

Medusa is the most infamous female fiend in Greek mythology - whose look turned every living thing to stone. But what is the true story behind the myth.

In 1947, ancient scrolls were discovered in desert caves near the Dead Sea. One of them spells out - in chilling detail - a future apocalyptic war.

Across the world, there are stories of treasures that have been lost for centuries. Could these ancient relics have been hidden by extraterrestrials.

Experts question what probes on Mars may have found over the past 40 years. Could NASA be hiding proof of life on the Red Planet from the public.

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.

In 1944, 28 Greek socialists were shot in Syntagma Square and 100,000 had perished by the end of the Civil War. Was this the old order Winston Churchill had longed for.

A look at the tactics employed to pass strategically important ships under the nose of the enemy, and the use of intelligence to carry out naval attacks.

Beneath a shopping arcade in Leeds' city centre, archaeologists discovered a Roman-era Christian cemetery containing the remains of 317 individuals.

The final hunt of the series takes the team back to Yorkshire to uncover relics from the brutal 14th Century clashes between the English and Scottish.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

What if every human on Earth disappeared? Discover what would happen to the world we have created, including our animals, buildings, landscape and bodies.

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.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Dr Alice Roberts explores a secret location in the Cotswolds, which gives up a very precious and fragile artefact.

The archaeologists get more than they bargained for while exploring the childhood home of Lady Jane Grey.

Dig into how a lobster helped archaeologists discover an 8000-year-old underwater settlement.

The team hunt for artefacts from World War II.

Alice Roberts tours the East of England, seeking out the biggest archaeological digs of the year and witnessing the uncovering of a hugely significant Roman mosaic.

Using drones and satellite imagery, discover a vanished Neolithic structure in an Irish field, an oasis in a Chinese desert and buried treasure in the UK.

Hear first-hand accounts from seasoned, decorated police officers who have had unbelievable, but substantiated UFO encounters.

Fritz Todt was the man tasked with engineering projects including the autobahn, the West Wall defences and more. But in 1942, he died under mysterious circumstances.

Alien Encounters: Will a Connecticut man really summon a UFO? The show probes lights over Giza's pyramids and explores an Oklahoma man's alien contact claims revealed.

Explore the stories of six formidable rulers, revealing their dark legacies and the impact they've had on history.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Hear first-hand accounts from seasoned, decorated police officers who have had unbelievable, but substantiated UFO encounters.

Dr Alice Roberts reveals the forgotten story of the Roman Army's cavalry as she journeys across Hadrian's Wall.

The team search for remains of the crashed WWII Spitfire and discover parts of the cockpit.

Alice Roberts shares archaeological discoveries from the west of the UK, including a Roman bath house and a German camp.

Mike enlists his buddy Dave to help him rid the Field of Dreams of a junk-stuffed school bus.

Investigate 75 million years of credible evidence suggesting aliens have visited Earth. From cave drawings to phenomena in the skies.

Giorgio Tsoukalos takes a look back at the most extraordinary encounters that, as far as he's concerned, provide evidence of an extraterrestrial presence on Earth.

What would happen to Earth if all humans vanished? Outbreak examines the possibility of escaped animals, invasive vines and a deadly virus taking over control from humans.

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

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Investigate 75 million years of credible evidence suggesting aliens have visited Earth. From cave drawings to phenomena in the skies.

Giorgio Tsoukalos takes a look back at the most extraordinary encounters that, as far as he's concerned, provide evidence of an extraterrestrial presence on Earth.

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

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

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

December 1941: Under cover of a fierce naval bombardment, a taskforce of elite British commandos sail towards the Norwegian town of South Vaagso.

Hours before the D-Day landing, a small group of American paratroopers were dropped behind enemy lines with a vital mission.

Discover an array of mysterious phenomena seen from above, including a Nazi weapon in Northern France and a Russian military tower near Chernobyl.

The team use high-tech sidescan sonar and deep sea magnetometers to search for evidence after learning of an encounter with an underwater phenomenon.

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.

The sun's been worshipped since time began. Could unlocking its mysteries be the difference between life and death.

A Hells Angel proves his loyalty to the gang by leading a mass slaughter of their enemies - but he soon wrestles with his conscience and seeks an exit.

Investigate 75 million years of credible evidence suggesting aliens have visited Earth. From cave drawings to phenomena in the skies.

Giorgio Tsoukalos takes a look back at the most extraordinary encounters that, as far as he's concerned, provide evidence of an extraterrestrial presence on Earth.

The team use high-tech sidescan sonar and deep sea magnetometers to search for evidence after learning of an encounter with an underwater phenomenon.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Mike takes on a rare Hertz Shelby Mustang for his friend's brother, but the badly damaged car might be too far-gone.

Giorgio Tsoukalos takes a look back at the incredible hieroglyphs, petroglyphs, and geoglyphs that he believes tell a worldwide story of alien visitation.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

What would happen if all humans vanished? Would LA's palm trees spark a huge inferno? What would become of New York? And which animals would take control from man.

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.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Giorgio Tsoukalos takes a look back at the incredible hieroglyphs, petroglyphs, and geoglyphs that he believes tell a worldwide story of alien visitation.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being.

Could Earth's deepest caves hide secret conduits to other worlds? Or harbour evidence that aliens once visited our planet? Experts investigate.

Are we being watched by otherworldly beings? Experts make surprising discoveries as they explore the ancient past for evidence of alien overseers.

History's greatest geniuses have often said their ideas came from visions or hallucinations. But could they have come from aliens? Experts investigate.

Experts investigate the mysterious origins of mummification. Could this global practice be proof that aliens once visited Earth.

Discover over a hundred massive concrete arrows scattered across America, a mysterious hole in the middle of a lake in Southern California and more.

Has the US military derived various forms of technology, including stealth technology, from downed UFOs? The UFO Magazine team investigate.

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.

Explore the thrilling world of vintage daredevils, from the Human Fly to skateboarding speedsters and diving horses.

Spartacus: As the Roman generals lead their mighty legions into the lands surrounding Italy, none could anticipate the turmoil caused by one bold mercenary - Spartacus.

Giorgio Tsoukalos takes a look back at the incredible hieroglyphs, petroglyphs, and geoglyphs that he believes tell a worldwide story of alien visitation.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Has the US military derived various forms of technology, including stealth technology, from downed UFOs? The UFO Magazine team investigate.

Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction.

Experts investigate whether ancient tales of beings with super-human powers could be inspired by extra-terrestrials who came to Earth in the past.

Inventor Nikola Tesla claimed to have direct communication with beings on other planets. Could this genius scientist have been a human 'receiver'.

JF begins restoring a 1928 Model A Roadster, while Avery takes on a 1941 military vehicle, and these antique machines are full of unique challenges.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

If people disappeared from Earth, what would happen to metallic objects? Would bridges and buildings collapse? And what would become of the US's secret stash of gold.

Celebrate the heroes who often found themselves fighting two battles - one against the enemy and one against racism within their own ranks.

On the orders of Adolf Hitler, the Nazi invaders of Alderney utilised more than 5,000 slave labourers to build a series of protective fortifications.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Sacred buildings around the world begin to crumble without humans to maintain them. Clues about the planet's future lie in an abandoned desert town.

Deadly toxins are unleashed upon the world without humans to contain them, turning lakes and rivers into streams of acid.

Explore the fate of crypts, safes, time capsules, personal records and other human relics. Meanwhile, Marine Corps learn to succeed in the wild.

Insects and rodents swarm supermarkets, but some food lasts forever. An unusual paint ingredient in Da Vinci's The Last Supper seals its fate.

A massive force of water threatens to destroy everything, from famous paintings to whole cities. The fate of the Sydney Opera House looks bleak.

A Turkish drought reveals a long-lost Basilica and its secrets, while the hull of a ship in the North Sea answers decades-old questions.

For years, people have claimed to have had direct, personal contact with aliens. The team tracks down some of those who claim to have had such contact.

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

Bombing the Reich: Towards the end of the war, the bombing of the city of Dresden provided one of the most controversial episodes of the war. This episode tells the story.

Road to Burma: The fall of Singapore and brutal Burma Railway highlight the conflict, alongside the Chindits and Merrill's Marauders.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

Giorgio Tsoukalos takes a look back at the most compelling investigations of all, and events that he believes represent real encounters with extraterrestrial visitors.

For years, people have claimed to have had direct, personal contact with aliens. The team tracks down some of those who claim to have had such contact.

Discover what would happen to priceless artefacts such as the Mona Lisa, the Declaration of Independence and the Liberty Bell if humans were no longer around.

With no humans around, discover the fate of Las Vegas and Atlantic City, where the ocean would tear apart casinos and a new rat pack would take over.

Discover the fate of mankind's machinery of war in a world with no people, in which Pearl Harbor comes under renewed attacks, and snow causes urban avalanches.

Mike and Avery try to get an auctioneer to help them downsize their collections but Avery scares him off.

Count down the world's top ten pyramid sites, from hidden structures in Peru to the famous landmarks of Giza in Egypt.

Count down the top 10 mysterious devices found around the world, from strange discs found in a cave in China to an ancient Greek computer.

In a world void of people, pythons begin to challenge alligators for control of the Everglades. Elsewhere, Shanghai sinks under the weight of its empty skyscrapers.

Thanks to the heroic acts of sailors, America scored a stunning win in the battle of Guadalcanal, loosening Japan's mighty grip on the Pacific.

The World War II killings carried out by the Nazis on Alderney represent the worst mass murder in British history - yet no one has been brought to justice.

Count down the world's top ten pyramid sites, from hidden structures in Peru to the famous landmarks of Giza in Egypt.

Count down the top 10 mysterious devices found around the world, from strange discs found in a cave in China to an ancient Greek computer.

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.

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

Enslaved by the Romans, Carpophorus gets trained to fight beasts in the Colosseum for the public's amusement.

Emperor Trajan throws his great games of AD 107 and the crowd is treated to the rare spectacle of female gladiators.

Ignatius refuses to pledge his allegiance to the emperor and is forced to travel 1,800 miles to the Colosseum, where his final punishment awaits.

Nubian pyramids reveal the rise of female power in Ancient Kush, while satellite images uncover secrets of an ancient Puebloan site in New Mexico.

This episode chronicles several close encounters with alien abductees who have been held captive, probed, examined and had objects implanted in their bodies.

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.

What is it about this barren land that is attracting alien attention? Is it the sensation of otherworldliness making it feel like home.

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

Count down the world's top ten pyramid sites, from hidden structures in Peru to the famous landmarks of Giza in Egypt.

Count down the top 10 mysterious devices found around the world, from strange discs found in a cave in China to an ancient Greek computer.

This episode chronicles several close encounters with alien abductees who have been held captive, probed, examined and had objects implanted in their bodies.

Veterans and historians tell the story of the Thai-Burma railway and the countless prisoners of war and slave labourers who lost their lives building it.

From the trench to the home front hospital, a medical historian retraces the train journey made by wounded soldiers during World War I.

The story of the Great Locomotive Chase - an attempt by Northern spies to steal steam locomotive The General during the American Civil War.

A crew of car lovers at a garage in the Rocky Mountains transforms abandoned heaps of rust into collectible classics.

Throughout history, spiritual leaders known as shamans have healed, protected and advised. Could they really be in contact with extraterrestrial realms.

Could insects have descended from extraterrestrials? Experts investigate whether Earth's 10 quintillion critters could have dangerous links to aliens.

On 19 August 1987, Michael Ryan went on a bloody rampage in the village of Hungerford. Ryan shot and killed 16 people, and his crime would change the face of Britain.

Doctor Harold Shipman was convicted of killing 15 patients in 2000, but he is thought to have killed up to 215. Discover how he was eventually caught by detectives.

Police and witnesses reflect on David Copeland's nail bomb terror in 1999. Blasts in Soho, Brixton and Brick Lane killed three and injured over 100.

Dr Alice Roberts explores a secret location in the Cotswolds, which gives up a very precious and fragile artefact.

The archaeologists get more than they bargained for while exploring the childhood home of Lady Jane Grey.

Win Every War. Scotland vs England: Al is joined by Sanjeev Kohli as they visit Craufurdland Castle to explore the truth behind famous battles from the Wars of Scottish Independence.

Throughout history, spiritual leaders known as shamans have healed, protected and advised. Could they really be in contact with extraterrestrial realms.

Could insects have descended from extraterrestrials? Experts investigate whether Earth's 10 quintillion critters could have dangerous links to aliens.

Missionaries Marcus and Narcissa settle by the Columbia River to convert the Cayuse. Cultural clashes and a measles outbreak spark a confrontation.

The abduction of nine-year-old Cynthia kicks off a series of increasingly deadly confrontations between her Comanche captors and the newly independent Texas.

Recount the birth of Mickey Mouse, from being created as a pencil sketch to rocketing into untouchable, lasting fame.

When their triumph over the US Army fails to end the war they must continue the fight to preserve the Lakota way of life.

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 the methods that Adolf Hitler and the Nazis used to indoctrinate a peaceful population, turning it into a finely-tuned war machine.

Throughout history, spiritual leaders known as shamans have healed, protected and advised. Could they really be in contact with extraterrestrial realms.

Could insects have descended from extraterrestrials? Experts investigate whether Earth's 10 quintillion critters could have dangerous links to aliens.

In the waning days of the war in Europe, the Soviets march into Germany. The Nazis take their final stand as they defend the capital of the Third Reich - Berlin.

Fall of France: The world had largely ignored the growing threat of Nazism during the late 1930s and now the appeasement of Hitler was about to have terrible consequences.

The story of one of the world's most effective war machines: The Viking longship. They were elegant, versatile and feared.

Victims and police discuss the shocking crimes of entertainer Rolf Harris, who was jailed for a number of sexual offences in 2014. Dermot Murnaghan presents.

Witness a remote island linked to one of the world's most famous aviation mysteries and explore thousands of shipwrecks in the Bermuda Triangle.

Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past.

Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction.

Dig into how a lobster helped archaeologists discover an 8000-year-old underwater settlement.

The team hunt for artefacts from World War II.

Alice Roberts tours the East of England, seeking out the biggest archaeological digs of the year and witnessing the uncovering of a hugely significant Roman mosaic.

The abduction of nine-year-old Cynthia kicks off a series of increasingly deadly confrontations between her Comanche captors and the newly independent Texas.

Missionaries Marcus and Narcissa settle by the Columbia River to convert the Cayuse. Cultural clashes and a measles outbreak spark a confrontation.

King Harold is shown dying with an arrow through his eye. Rob learns that the story may not be as simple as that.

Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past.

Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction.

Dr Alice Roberts explores a secret location in the Cotswolds, which gives up a very precious and fragile artefact.

The archaeologists get more than they bargained for while exploring the childhood home of Lady Jane Grey.

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.

Roadworks on the A9 road uncover the remains of a young woman who lived and died in the early Bronze Age. Was she one of the so-called Beaker People.

On 19 August 1987, Michael Ryan went on a bloody rampage in the village of Hungerford. Ryan shot and killed 16 people, and his crime would change the face of Britain.

Doctor Harold Shipman was convicted of killing 15 patients in 2000, but he is thought to have killed up to 215. Discover how he was eventually caught by detectives.

The estate agent reveals the story of her abduction, rape and incarceration, which occurred in 1992 whilst showing a man around a house.

Theorists ask whether a currently unidentified species represented in our DNA could be a result of breeding between humans and aliens in the remote past.

Experts question whether ancient myths provide evidence that reptillian aliens are more than just pop-culture creations and staples of science-fiction.

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

Since the Syrian civil war broke out in 2011, 400,000 have been killed in the conflict. Who is to blame for this and the terrible conditions in which its people live.

Explore how ships evaded detection post-WW2 with radar, adopting shocking methods to remain hidden.

Dermot Murnaghan examines the tragic case of five-year-old April Jones, who was abducted and killed by 46-year-old Mark Bridger in October 2012.

Venture into the unknown stories of the American frontier and the anonymous Black figures that have inspired countless Hollywood tales, yet have been erased from the silver screen.

Count down the world's top 10 mysterious islands, including sites said to be home to giants and islands that disappear into thin air.

Count down the top ten alien craft, from V-shaped objects to orbs of light to flying saucers.

Discover what would happen to priceless artefacts such as the Mona Lisa, the Declaration of Independence and the Liberty Bell if humans were no longer around.

Mutinies have remained rare over the centuries of naval history, but when they do happen they are highly charged and often inspiring events.

On 19 August 1987, Michael Ryan went on a bloody rampage in the village of Hungerford. Ryan shot and killed 16 people, and his crime would change the face of Britain.

Count down the world's top 10 mysterious islands, including sites said to be home to giants and islands that disappear into thin air.

Count down the top ten alien craft, from V-shaped objects to orbs of light to flying saucers.

The south of England offers rich pickings, including the earliest money made in Britain and a massive haul of Roman treasure.

Discover the most incredible archaeology from the north of Britain, including Scotland's oldest railway and one of the best-preserved Norman castles.

Alice Roberts heads to the Midlands to take a look at the best archaeological finds from the heart of England.

Professor Alice Roberts heads to the West of England to showcase some of archelogy's greatest recent finds, including a new Roman town.

Another visit to the north for Alice, checking out evidence of early writing by the Picts in Scotland and a 3,000-year-old Bronze Age coffin.

Discover strange markings in the remote region of Northern Finland and reveal secrets found deep in the Antarctic.

The team head to Mexico to the site of an alleged international incident involving the remains of a UFO wreck.

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

Mysterious Underwater Creatures: Investigators analyse footage of unexplained ocean events, from a possible sea serpent to deep-sea creatures washing up onto California's shores.

Explore the stories of six formidable rulers, revealing their dark legacies and the impact they've had on history.

Count down the world's top 10 mysterious islands, including sites said to be home to giants and islands that disappear into thin air.