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.

Investigate a machine which can supposedly read personalities, a mask painted with human blood and a cursed pot.

Ancient Astronaut Theorists investigate how ancient aliens may have helped to guide and define mankind in the remote past.

Experts question what the God Particle reveals about the origin of our world and whether clues to its significance could have been left by ancient aliens.

Exploring the machines that hide in the shadows, capturing, transmitting and analysing vital combat information.

The Vietnam War pitted technology against sheer determination, as the American forces used superior firepower, but were scuppered by North Vietnamese ingenuity.

Dr Alice Roberts visits excavations in Orkney and York on the hunt for Viking relics. Finds include an amazing collection of silver and gold.

Alice Roberts learns more about mankind's Stone Age ancestors, and travels to Jersey to meet a team hoping to shed new light on the Neanderthals.

Alice Roberts and Matt Williams present more outstanding archaeology. In the east of Britain, sites include Must Farm, Colchester, Oakington, Lyminge and Silchester.

Andy explores an ancient cavern, takes a tour of Dartmoor's prison museum and uncovers the legend behind Arthur Conan Doyle's 'The Hound of the Baskervilles'.

Ancient Astronaut Theorists investigate how ancient aliens may have helped to guide and define mankind in the remote past.

Experts question what the God Particle reveals about the origin of our world and whether clues to its significance could have been left by ancient aliens.

The White House meets its fate in a world without people, and the President's dog must learn the way of the wild.

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

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.

Take a tour of some of the most significant breakthroughs in human history, from the digital revolution to the first aircraft to fly faster than the speed of sound.

The rock-hewn pillars of Gobekli Tepe in Turkey have baffled archaeologists for decades - who built this incredible monument, and why.

The tomb of Qin Shi Huang, the first emperor of China, remains one of the most famous and secretive archaeological sites in the world.

In China, a burial site reveals a child's remains marked with peculiar modifications. This raises questions about Chinese mortuary practices and more.

Ancient Astronaut Theorists investigate how ancient aliens may have helped to guide and define mankind in the remote past.

Experts question what the God Particle reveals about the origin of our world and whether clues to its significance could have been left by ancient aliens.

Explore the Mary Celestia wreck, discover imperial relics from Iraq, a medieval man's remains and lost artefacts reshaping Native American history.

Explore Seahenge's timber circle, a Ukrainian canoe, ancient remains in a mudslide and a relic from Lake Mead's dry bed.

Wales: Some believe a UFO was shot down by the RAF above South Wales in 2016. Craig and Sarah examine the evidence as they try to discover if it was an extra-terrestrial event.

On 8 April 2011, the FBI declassified decades of top secret government documents for the first time. Here, experts examine the possibility of the end of the world.

Experts examine the possibility of a secret US government facility accused of creating many diseases and biological weapons.

Ian goes over the top when he gets to work on a wild creation.

Experts investigate why religious apparitions appear on seemingly normal objects to seemingly normal people. Is it blind faith or supernatural phenomena.

Paranormal experts and skeptics explore the mysterious world of psychics. Is it a talent, a supernatural gift or a hoax.

A high-rise window washer somehow survives a 50-storey fall and ball-sized ice chunks fall from the sky.

When satellites capture a strange oozing grey mass in the Mississippi countryside, scientist Nick Pollock goes to investigate.

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

The troubled beginnings and amazing exploits of the legendary British heavy bomber. Plus, see a replica up close.

Experts investigate an ancient fortress in Peru said to have been built with laser tools. Could it prove that aliens once visited 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 1947, there was an unprecedented wave of UFO sightings that propelled the UFO phenomenon to the world stage. What were the US Air Force's findings.

For many people, the most credible UFO reports are those raised by law enforcement. We investigate the most significant reports from police records.

Andy searches for dragons in Somerset, visits the grave of Arthur and Guinevere and tests the healing waters of a spring once used to wash the Holy Grail.

Alice Roberts and Matt Williams visit the Dorset Country Museum, where they explore finds from archaeological digs across the west of Britain.

Experts investigate why religious apparitions appear on seemingly normal objects to seemingly normal people. Is it blind faith or supernatural phenomena.

Paranormal experts and skeptics explore the mysterious world of psychics. Is it a talent, a supernatural gift or a hoax.

A high-rise window washer somehow survives a 50-storey fall and ball-sized ice chunks fall from the sky.

When satellites capture a strange oozing grey mass in the Mississippi countryside, scientist Nick Pollock goes to investigate.

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

The troubled beginnings and amazing exploits of the legendary British heavy bomber. Plus, see a replica up close.

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

A look at America's Cold War codebreakers charged with unravelling a seemingly uncrackable Soviet code and the uncovering of the Manhattan Project.

Experts investigate an ancient fortress in Peru said to have been built with laser tools. Could it prove that aliens once visited 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 1947, there was an unprecedented wave of UFO sightings that propelled the UFO phenomenon to the world stage. What were the US Air Force's findings.

For many people, the most credible UFO reports are those raised by law enforcement. We investigate the most significant reports from police records.

Andy searches for dragons in Somerset, visits the grave of Arthur and Guinevere and tests the healing waters of a spring once used to wash the Holy Grail.

Alice Roberts and Matt Williams visit the Dorset Country Museum, where they explore finds from archaeological digs across the west of Britain.

Experts investigate why religious apparitions appear on seemingly normal objects to seemingly normal people. Is it blind faith or supernatural phenomena.

Paranormal experts and skeptics explore the mysterious world of psychics. Is it a talent, a supernatural gift or a hoax.

Mike builds a 1964 Parisienne for a big family, while Avery scores his first client of the year and puts together a 1975 Ford Bronco.

What happens when people take their numerophobia too seriously? Experts investigate why certain numbers incite fear and panic in people.

Believers and skeptics debate the origins and meanings of the mysterious formations known as crop circles.

Residents of a Texas town report strange lights in the night sky.

Florida's vast Everglades have been invaded by up to 300,000 giant pythons. A group of military veterans are battling to rid paradise of these monsters.

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.

A look at the later, clipped wing version flown by Czech refugee pilots in the UK during World War II. Plus, a tour of a restored example.

Experts investigate reports of strange bronze flying ships spotted during the Black Death. Could aliens have brought deadly disease to Earth.

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

Between 1981 and 2011, cameras on NASA space shuttles have picked up many images of UFOs that experts still struggle to explain.

While many UFO sightings occur in rural locations with only a single eyewitness, there have been sightings over cities witnessed by hundreds.

Andy explores Wiltshire's mysterious megaliths and barrows, visits a medieval meadery and encounters a religious pilgrimage at the site of a freshly made crop circle.

Alice Roberts and Matt Williams visit the Neolithic Orkney World Heritage Site, where they explore finds from archaeological digs across the north of Britain.

What happens when people take their numerophobia too seriously? Experts investigate why certain numbers incite fear and panic in people.

Believers and skeptics debate the origins and meanings of the mysterious formations known as crop circles.

Residents of a Texas town report strange lights in the night sky.

Florida's vast Everglades have been invaded by up to 300,000 giant pythons. A group of military veterans are battling to rid paradise of these monsters.

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.

A look at the later, clipped wing version flown by Czech refugee pilots in the UK during World War II. Plus, a tour of a restored example.

How will the new Cold War, involving the US, Russia, the UK and China, play out? Will trade and cyber warfare be the worst of it or is military war inevitable.

Temples of Doom: From the terrifying Tower of London to a hotel of horrors, discover the dark secrets hidden within these foreboding fortresses.

Experts investigate reports of strange bronze flying ships spotted during the Black Death. Could aliens have brought deadly disease to Earth.

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

Between 1981 and 2011, cameras on NASA space shuttles have picked up many images of UFOs that experts still struggle to explain.

While many UFO sightings occur in rural locations with only a single eyewitness, there have been sightings over cities witnessed by hundreds.

Andy explores Wiltshire's mysterious megaliths and barrows, visits a medieval meadery and encounters a religious pilgrimage at the site of a freshly made crop circle.

Alice Roberts and Matt Williams visit the Neolithic Orkney World Heritage Site, where they explore finds from archaeological digs across the north of Britain.

What happens when people take their numerophobia too seriously? Experts investigate why certain numbers incite fear and panic in people.

Believers and skeptics debate the origins and meanings of the mysterious formations known as crop circles.

A major setback during a restoration blows Mike's budget, while the biggest financial gamble of his life arrives and chaos threatens to ensue.

Experts investigate whether centuries-old paintings of aliens and UFOs are artistic renderings of real sightings, a coded message for humankind, or just a coincidence.

Experts investigate if a series of house fires across the UK are linked to an allegedly cursed portrait.

A look at a mysterious medieval manuscript and Egyptian mummies containing cocaine from Peru.

Satellites reveal a series of strange pits in central China. What are they and what is their connection to some of the most pivotal events in the country's history.

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 Luftwaffe's Frontline Fighter: The astonishing story of the 109 and its modified variants, best known for its role in the Battle of Britain.

Experts search for proof of alien visitors in the ruins of lost civilisations. Could Mayan carvings reveal a city once ruled by otherworldly beings.

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.

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.

With light from distant stars taking millions of years to reach us, how long might it take for alien life to answer any communication sent into space.

Andy receives military training at a Civil War re-enactment, before embarking on a ghostly hunt and meeting the man who captured leopard DNA from a sheep kill.

Alice Roberts and Matt Williams visit sites in the west of Britain, including one uncovering the rituals of Stonehenge.

Experts investigate whether centuries-old paintings of aliens and UFOs are artistic renderings of real sightings, a coded message for humankind, or just a coincidence.

Experts investigate if a series of house fires across the UK are linked to an allegedly cursed portrait.

A look at a mysterious medieval manuscript and Egyptian mummies containing cocaine from Peru.

Satellites reveal a series of strange pits in central China. What are they and what is their connection to some of the most pivotal events in the country's history.

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 Luftwaffe's Frontline Fighter: The astonishing story of the 109 and its modified variants, best known for its role in the Battle of Britain.

Artifacts like glass shards and a writing slate from the tragic Donner Party of 1846 have been recently uncovered in the Sierra Nevada.

Constantine the Great: A new emperor with a huge vision and undeniable power slowly gains control of the entire Roman empire following the end of the civil wars.

Experts search for proof of alien visitors in the ruins of lost civilisations. Could Mayan carvings reveal a city once ruled by otherworldly beings.

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.

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.

With light from distant stars taking millions of years to reach us, how long might it take for alien life to answer any communication sent into space.

Andy receives military training at a Civil War re-enactment, before embarking on a ghostly hunt and meeting the man who captured leopard DNA from a sheep kill.

Alice Roberts and Matt Williams visit sites in the west of Britain, including one uncovering the rituals of Stonehenge.

Experts investigate whether centuries-old paintings of aliens and UFOs are artistic renderings of real sightings, a coded message for humankind, or just a coincidence.

Experts investigate if a series of house fires across the UK are linked to an allegedly cursed portrait.

Mike kicks off his fifth year in business with the restoration of a rare 1971 International Scout II, before teaming up with his brothers for a family task.

'Death shall come on swift wings to him who disturbs the peace of the King,' so the inscription goes. Is there truly a curse that haunts the original discoverers of Tutankhamun.

A strange creature was reportedly seen in a wooded area of Massachusetts by different people, all giving similar descriptions. Coincidence, collusion, or a genuine mystery.

A look at dolphin rescues, death-smelling pets and a skinny teen with unbelievable strength.

Eyes in the sky uncover something disturbing in Alaska - a settlement large enough to house thousands of people, wiped out by artillery and bombs. What happened here.

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

Superfortress: The story of the prolonged development and the initially troubled operational history of the Boeing B29 Superfortress.

From gunpowder to missiles, were these lethal weapons the product of human innovation or created with help from another, otherworldly source.

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

Is biological life merely a stepping stone for a universe dominated by alien artificial intelligence.

As humanity continues to search for alien life, experts give their analysis on how close we are to First Contact.

Andy makes a startling discovery at the site of the Rendlesham UFO incident, before sending psychic Simi to investigate one of Britain's most haunted inns.

Alice Roberts and Matt Williams present more outstanding archaeology. The team unearths a mass grave and search the Thames for clues to a 17th century tragedy.

'Death shall come on swift wings to him who disturbs the peace of the King,' so the inscription goes. Is there truly a curse that haunts the original discoverers of Tutankhamun.

A strange creature was reportedly seen in a wooded area of Massachusetts by different people, all giving similar descriptions. Coincidence, collusion, or a genuine mystery.

A look at dolphin rescues, death-smelling pets and a skinny teen with unbelievable strength.

Eyes in the sky uncover something disturbing in Alaska - a settlement large enough to house thousands of people, wiped out by artillery and bombs. What happened here.

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

Superfortress: The story of the prolonged development and the initially troubled operational history of the Boeing B29 Superfortress.

By Night & By Day: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers.

During Italy's reconquest, the Allies faced the Winter Line and called in the First Special Service Force, elite troops trained for brutal terrain warfare.

From gunpowder to missiles, were these lethal weapons the product of human innovation or created with help from another, otherworldly source.

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

Is biological life merely a stepping stone for a universe dominated by alien artificial intelligence.

As humanity continues to search for alien life, experts give their analysis on how close we are to First Contact.

Andy makes a startling discovery at the site of the Rendlesham UFO incident, before sending psychic Simi to investigate one of Britain's most haunted inns.

Alice Roberts and Matt Williams present more outstanding archaeology. The team unearths a mass grave and search the Thames for clues to a 17th century tragedy.

'Death shall come on swift wings to him who disturbs the peace of the King,' so the inscription goes. Is there truly a curse that haunts the original discoverers of Tutankhamun.

A strange creature was reportedly seen in a wooded area of Massachusetts by different people, all giving similar descriptions. Coincidence, collusion, or a genuine mystery.

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.

A hoard of golden coins was found in the prospecting district of California. Where did they come from and why did the owners never claim them.

What is the Voynich Manuscript, and what secrets does the mysterious 500-year-old document hold.

A look at Death Valley boulders, mysterious dancing lights and super-marathon runners.

A strange, eerily colourful ocean seen from space conceals a terrible secret - its waters are killing all sea life in and around it. What is causing this dead zone.

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

Germany's Frontline Bomber: A look at one of the most-recognised German aircrafts of WWII and how it became a guinea pig for future bombers.

Experts investigate creepy places associated with death. Could otherworldly connections be responsible for strange disappearances and suicides.

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

From military radar to Navy aircraft, sightings of Unidentified Aerial Phenomena have become more frequent - leading to unprecedented acceptance of alien contact.

Is the satellite in Earth's orbit that astronauts discovered in 1998 the same one that Nikola Tesla detected back in 1899.

Andy tracks down the site of the original Stonehenge, meets a childhood witness of Wales' most famous UFO incident and takes part in a comedic hunt for the Welsh Wildman.

In the north of Britain, a team discovers clues to Scotland's first kingdoms and metal detectorists unearth a Viking treasure hoard.

A hoard of golden coins was found in the prospecting district of California. Where did they come from and why did the owners never claim them.

What is the Voynich Manuscript, and what secrets does the mysterious 500-year-old document hold.

A look at Death Valley boulders, mysterious dancing lights and super-marathon runners.

A strange, eerily colourful ocean seen from space conceals a terrible secret - its waters are killing all sea life in and around it. What is causing this dead zone.

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

Germany's Frontline Bomber: A look at one of the most-recognised German aircrafts of WWII and how it became a guinea pig for future bombers.

In 1994, a secret manuscript hidden in the Vatican revealed a previously unknown apocalyptic prophecy accredited to Nostradamus. Where did it come from.

When governments strike dark deals with cults, mobs and even sworn enemies, frosty relationships and mounting tensions are tested head on.

Experts investigate creepy places associated with death. Could otherworldly connections be responsible for strange disappearances and suicides.

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

From military radar to Navy aircraft, sightings of Unidentified Aerial Phenomena have become more frequent - leading to unprecedented acceptance of alien contact.

Is the satellite in Earth's orbit that astronauts discovered in 1998 the same one that Nikola Tesla detected back in 1899.

Andy tracks down the site of the original Stonehenge, meets a childhood witness of Wales' most famous UFO incident and takes part in a comedic hunt for the Welsh Wildman.

In the north of Britain, a team discovers clues to Scotland's first kingdoms and metal detectorists unearth a Viking treasure hoard.

A hoard of golden coins was found in the prospecting district of California. Where did they come from and why did the owners never claim them.

What is the Voynich Manuscript, and what secrets does the mysterious 500-year-old document hold.

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

Studies show 70% of UFO sightings occur in 'hotspots', where unusual phenomena is regularly reported. Is there something about these places that attracts visitors.

More than 10,000 crop circle formations have been documented and many display properties that defy explanation. Could they be of otherworldly origin.

The troubled beginnings and amazing exploits of the legendary British heavy bomber. Plus, see a replica up close.

The Luftwaffe's Frontline Fighter: The astonishing story of the 109 and its modified variants, best known for its role in the Battle of Britain.

Alice Roberts and Matt Williams visit the Dorset Country Museum, where they explore finds from archaeological digs across the west of Britain.

Alice Roberts and Matt Williams visit sites in the west of Britain, including one uncovering the rituals of Stonehenge.

Andy tracks down the site of the original Stonehenge, meets a childhood witness of Wales' most famous UFO incident and takes part in a comedic hunt for the Welsh Wildman.

Andy receives military training at a Civil War re-enactment, before embarking on a ghostly hunt and meeting the man who captured leopard DNA from a sheep kill.

Studies show 70% of UFO sightings occur in 'hotspots', where unusual phenomena is regularly reported. Is there something about these places that attracts visitors.

More than 10,000 crop circle formations have been documented and many display properties that defy explanation. Could they be of otherworldly origin.

Armed with evidence from Odette, Vera intensifies her search at Karlsruhe prison and Ravensbruck, facing hurdles to uncover crucial results in Germany.

Himmler's belief in the theory that the Himalayas were home to the Nazis' Aryan ancestors leads to an SS mission to the mountains.

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

Enter JRR Tolkien's fantastical world of hobbits, orcs and wizards, and uncover the real-life influences that shaped his epic fantasy books.

Idolised in Norse mythology, Thor protects the planet from evil threats. And today, new discoveries are helping us to uncover the hidden truth behind the legend.

In June 1944, the Allied armada launches an assault on the Normandy coast, with soldiers charging in successive waves on a successful and historic day.

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.

Studies show 70% of UFO sightings occur in 'hotspots', where unusual phenomena is regularly reported. Is there something about these places that attracts visitors.

More than 10,000 crop circle formations have been documented and many display properties that defy explanation. Could they be of otherworldly origin.

When millions over the world vanish, a biblical prophecy known as the Rapture will be fulfilled. Are there signs of the prediction actually happening.

Sir Isaac Newton is considered one of history's great geniuses, but did you know he also predicted the date of the apocalypse.

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.

Examine claims Nostradamus predicted Hitler. Plus, learn about the canary resuscitator and a tiny object with the power to kill.

Uncover the secrets of the Holy Sepulchre, the sacred Christian site built in the same spot as the death and resurrection of Jesus.

The discovery of the ancient Karahan Tepe megalithic site, displaying perplexing engineering skills, turns the archaeology world on its head.

Scholars identify Egypt's obelisks as monuments to the pharaohs, while ancient astronaut theorists suggest they may power communication with the gods.

A look at the later, clipped wing version flown by Czech refugee pilots in the UK during World War II. Plus, a tour of a restored example.

Superfortress: The story of the prolonged development and the initially troubled operational history of the Boeing B29 Superfortress.

Alice Roberts and Matt Williams visit the Neolithic Orkney World Heritage Site, where they explore finds from archaeological digs across the north of Britain.

Alice Roberts and Matt Williams present more outstanding archaeology. The team unearths a mass grave and search the Thames for clues to a 17th century tragedy.

In the north of Britain, a team discovers clues to Scotland's first kingdoms and metal detectorists unearth a Viking treasure hoard.

Andy makes a startling discovery at the site of the Rendlesham UFO incident, before sending psychic Simi to investigate one of Britain's most haunted inns.

The discovery of the ancient Karahan Tepe megalithic site, displaying perplexing engineering skills, turns the archaeology world on its head.

Scholars identify Egypt's obelisks as monuments to the pharaohs, while ancient astronaut theorists suggest they may power communication with the gods.

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.

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.

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.

Across every profession and industry, icons exist in various forms and have done throughout history, from the Albert Einstein to the Jumbo Jet and the Sydney Opera House.

In Malta lies an underground complex dating back over 5,000 years, containing the remains of 7,000 humans. But who do the bizarre skulls belong to.

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.

Battle of Britain: This is the story of that battle, during which a handful of young pilots faced and eventually defeated the might of Goering's bombers.

The discovery of the ancient Karahan Tepe megalithic site, displaying perplexing engineering skills, turns the archaeology world on its head.

Scholars identify Egypt's obelisks as monuments to the pharaohs, while ancient astronaut theorists suggest they may power communication with the gods.

Check out a mythical sculpture unearthed by an Indian tsunami, a 12th-century temple in quake-prone Mexico and a sunken ship in Utah's Great Salt Lake.

Explore evidence that ties a meteor strike to a Biblical tale. Delve into a treasure-filled tunnel revealed by a sinkhole in Mexico.

Ireland: Craig and Sarah take a look at a case from November 2018 off the coast of Ireland, in which pilots saw bizarre lights through their cockpit windows.

From the Cold War to the TV set, experts question whether the government is actively controlling what you think, how you act and what you believe.

Experts question if there really is an elite group of powerbrokers trying to rule the planet. And if so, who is behind this New World Order.

Ian leaves behind his wild ways and embraces a more conservative lifestyle.

Could the Founding Fathers have hidden secrets about ancient aliens in their documents, buildings and symbols? Experts investigate.

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.

Atlantis, the legendary continent that sank. As the Nazis rose to power, Himmler and the SS were convinced Atlantis existed. Season premiere.

Two iconic machines of World War II - the Spitfire symbolised British hope and resistance, while the Tiger tank embodied German power.

The Wooden Wonder: The fascinating story behind the stunning wooden aircraft, which undertook some of the most daring and iconic raids of WWII.

Could the Founding Fathers have hidden secrets about ancient aliens in their documents, buildings and symbols? Experts investigate.

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.

Do the doorways recently discovered on the surface of Mars lead to an existential lesson for our species.

According to physics, time travel is possible - so could these unidentified phenomena actually be us from the future.

Andy heads to the home of palaeontology on the Jurassic Coast and braves the collapsing cliffs of Lyme Regis to bring back one of its many fossils.

Dr Alice Roberts explores finds from the west of Britain, including the lost World War I training trenches on Salisbury Plain.

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.

Check out mind-reading plants, pagan human sacrifice and Californian time travellers.

Did a fisherman capture footage of a giant sea serpent? What were the lights that appeared above Texas in 1951.

Two iconic machines of World War II - the Spitfire symbolised British hope and resistance, while the Tiger tank embodied German power.

The Wooden Wonder: The fascinating story behind the stunning wooden aircraft, which undertook some of the most daring and iconic raids of WWII.

Scotty Moore travels to the northern coast of Peru, where archaeologists have discovered a teenage girl buried in a strange place just outside an empty tomb.

Experts reveal the highly encrypted phones that criminal gangs use to stay under the radar, and explain how the police are turning the phones against the crooks.

Could the Founding Fathers have hidden secrets about ancient aliens in their documents, buildings and symbols? Experts investigate.

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.

Do the doorways recently discovered on the surface of Mars lead to an existential lesson for our species.

According to physics, time travel is possible - so could these unidentified phenomena actually be us from the future.

Andy heads to the home of palaeontology on the Jurassic Coast and braves the collapsing cliffs of Lyme Regis to bring back one of its many fossils.

Dr Alice Roberts explores finds from the west of Britain, including the lost World War I training trenches on Salisbury Plain.

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.

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

Experts investigate the mysterious Creation of Man, asking whether unexplained advances in human evolution could have been down to aliens.

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

In Nazi Germany, questions about witchcraft attracted SS leaders. Himmler, dedicated to an Aryan super race, established a team to research witchcraft.

The Vietnam war changed aerial warfare in more ways than one. The Phantom became the first true fighter bomber of the modern era.

The F15 Eagle immediately turned the tide of the first Gulf War to prove its greatness.

Experts investigate the mysterious Creation of Man, asking whether unexplained advances in human evolution could have been down to aliens.

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

Certain structures on our planet have stood the test of time and continue to astonish mankind - so much so, that alien intervention has not been ruled out.

In 2023, David Grusch - a former US Intelligence Officer - testified to a US government committee that there are alien spacecrafts at secret facilities.

Andy visits Britain's oldest shop, drinks coffee with a corpse and discovers a 19th-century time machine hidden in an urban cemetery.

Dr Alice Roberts uncovers some incredible finds from North Britain, including Scottish man-made islands that help paint a picture of Stone Age tech.

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

A man survives six lightning strikes, while a toddler is frozen solid and thawed unharmed.

In this special, Tony Harris reviews the latest developments and most compelling photographic evidence from a tumultuous year of UFO revelations.

The Vietnam war changed aerial warfare in more ways than one. The Phantom became the first true fighter bomber of the modern era.

The F15 Eagle immediately turned the tide of the first Gulf War to prove its greatness.

The MOVE organisation rose up in 1970s Philadelphia. A unique blend of black power and flower power, their fight against police oppression escalated over time.

Treacherous Traps: Examine a variety of diabolical booby traps used to ensnare treasure hunters, outwit body snatchers or gravely harm wartime enemies.