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.

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.

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.

A look at cases where people have claimed strange voices urged them to commit horrific deeds. Could they have been obeying the orders of aliens.

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

As the Third Reich rises to power, Himmler fixates on the Holy Grail as his and the Nazis' desperation to capture this ancient relic intensifies.

Icons of the Royal Navy in different eras, the Belfast and the Harrier have earned their place in history for different reasons.

The mighty Flying Fortress takes to the air as we examine the background and development of one of WWII's most iconic bombers.

A look at cases where people have claimed strange voices urged them to commit horrific deeds. Could they have been obeying the orders of aliens.

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

Some places are known for so many reports of UAP sightings that people flock from all around the world, just to catch a glimpse of a flying saucer.

UAPs have been seen entering the ocean at high speeds - and since our oceans can be as deep as six miles, were the UAPs simply trying to get home.

Dawn of the Celts: A journey to some of the mysteries of how the early Celts emerged and expanded, from collapsed salt mines, to bizarre rituals and lost cities.

In the East of Britain, Dr Alice Roberts finds new revelations from 'Britain's Pompeii' and the theatre where Shakespeare premiered Romeo and Juliet.

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

Cows align with the Earth magnetic fields, and a young makes an incredible connection.

Are reports of a strange swirling vortex with a brilliant white center in the skies proof of a genuine UFO.

Icons of the Royal Navy in different eras, the Belfast and the Harrier have earned their place in history for different reasons.

The mighty Flying Fortress takes to the air as we examine the background and development of one of WWII's most iconic bombers.

Uncover the story of the SS Atlantic's deadly 1873 crash through intriguing stories and 3D recreations of the wreck.

The Barbarian General: Violence erupts as the Romans and Barbarians try to co-exist in the empire. The Goths rebel under the leadership of Alaric, a man they call king.

A look at cases where people have claimed strange voices urged them to commit horrific deeds. Could they have been obeying the orders of aliens.

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

Some places are known for so many reports of UAP sightings that people flock from all around the world, just to catch a glimpse of a flying saucer.

UAPs have been seen entering the ocean at high speeds - and since our oceans can be as deep as six miles, were the UAPs simply trying to get home.

Dawn of the Celts: A journey to some of the mysteries of how the early Celts emerged and expanded, from collapsed salt mines, to bizarre rituals and lost cities.

In the East of Britain, Dr Alice Roberts finds new revelations from 'Britain's Pompeii' and the theatre where Shakespeare premiered Romeo and Juliet.

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

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

Experts scrutinise prehistoric ruins, asking whether humans could have built these advanced structures alone. Might they have had alien help.

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

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

Two of the most produced combat machines in World War II managed to stay relevant until the end of the war through constant modernization and new variants.

The mighty North American twin delivered the first blow in the fight back against Japan, in one of the most daring and audacious raids of all time.

Experts scrutinise prehistoric ruins, asking whether humans could have built these advanced structures alone. Might they have had alien help.

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

As the Fermi Paradox states, the likelihood of advanced life in the universe is surprisingly high - so why haven't we had any contact with extraterrestrial life.

Physical evidence of alien activity has been hidden from the public for years - but it is starting to be revealed.

The Art and War: After thriving for three centuries, the Celts turned from traders into proven warriors, weapon masters and metal artists in a time that became their golden age.

Dr Alice Roberts explores the most exciting finds from West Britain. Iron Age gold in Britain is unearthed and a Viking camp is discovered.

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.

Check out a heart patient's unbelievable transformation, circles of ice in rivers and a shocking DNA test.

What causes the thunderous banging noises that wake Thessaloniki residents every night.

Two of the most produced combat machines in World War II managed to stay relevant until the end of the war through constant modernization and new variants.

The mighty North American twin delivered the first blow in the fight back against Japan, in one of the most daring and audacious raids of all time.

Terror of the World: The story of a deadly war that intertwines Germany, Poland, Japan, Italy and Spain, and the remorseless development of weapons and bombers.

A look at the women who surrounded Hitler after he came to power and how they were held up as an Aryan ideal for German society to strive for.