A new client comes into the picture with a vintage desire, a hand built motorcycle in the vein of early Harley Davidson's, with a Full Custom twist.

Travel through the remote jungles of Central America to discover the extraordinary history of the grandest and most spectacular cities inhabited by the Maya.

Visit a luxury survival condo in Kansas, a minefield in Sarajevo and the King Cobra Village in Thailand. Elsewhere, explore the "fake" pentagon on the outskirts of Shanghai.

A mysterious creature that glows in the dark is discovered in the Australian rainforest. Hundreds of human bones are found in a Belizean cave.

The myth of Merlin is associated with an arrangement of stones in northern France. Satellite images might finally explain this ancient riddle.

On September 15, 1942, 12 commandos from the Special Operations Executive arrived in Northern Norway by submarine on a nearly suicidal mission.

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.

Throughout the world, there are areas where strange activity, UFOs, bizarre orbs of light and electromagnetic anomalies are regularly witnessed.

Theorists search ancient texts for proof that extraterrestrials influenced the miraculous advances made by the Sumerian civilisation 5,000 years ago.

Alice looks into the history of York, taking part in a Viking battle and examining an almost 1,000-year-old poo.

Humans are found to have lived in Britain earlier than thought when tools are unearthed in Norfolk, while some of our ancestors' customs are revealed at another dig.

Visit a luxury survival condo in Kansas, a minefield in Sarajevo and the King Cobra Village in Thailand. Elsewhere, explore the "fake" pentagon on the outskirts of Shanghai.

A mysterious creature that glows in the dark is discovered in the Australian rainforest. Hundreds of human bones are found in a Belizean cave.

The myth of Merlin is associated with an arrangement of stones in northern France. Satellite images might finally explain this ancient riddle.

On September 15, 1942, 12 commandos from the Special Operations Executive arrived in Northern Norway by submarine on a nearly suicidal mission.

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.

Before the Unabomber, New Yorkers were terrified for 16 years by an attacker who planted bombs across the city. The culprit? An electrician named George Metesky.

The strange story of Michael Molly shows how some people just won't die when you want them to.

Throughout the world, there are areas where strange activity, UFOs, bizarre orbs of light and electromagnetic anomalies are regularly witnessed.

Theorists search ancient texts for proof that extraterrestrials influenced the miraculous advances made by the Sumerian civilisation 5,000 years ago.

Alice looks into the history of York, taking part in a Viking battle and examining an almost 1,000-year-old poo.

Humans are found to have lived in Britain earlier than thought when tools are unearthed in Norfolk, while some of our ancestors' customs are revealed at another dig.

An old client has brought in Ian to build a classic 54' Chevy pickup truck from the ground up, complete with major custom upgrades.

Explore 10 sites that chart the rise of the crusading Catholic empire of Spain, beginning in the walled and highly religious medieval city of Avilla.

Learn about Togo's traditional religious practices and take a tour of the incredible Danakil Desert in Ethiopia. Plus, visit a city in Georgia where every citizen has a gun.

A mysterious site with huge stone blocks is discovered off the coast of Tanzania. In the Guatemalan rainforest, hundreds of human bones are found.

Strange mounds in Transylvania might pinpoint the location of the tomb of the bloodthirsty tyrant believed to have inspired Dracula.

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.

Could there be an otherworldly source of knowledge worth tapping into, one that may be steering the course of human history.

Experts explore the controversy surrounding the ancient Crystal Skulls, asking what powers might be unleashed if all 13 artefacts were brought together.

Alice tries some eel pie and investigates the origins of modern surgery as she explores the Norman period of British history by examining the town of Winchester.

In Northumbria, skeletons tell tales of violent death and tenderness, and people curate grave goods in an amazing community project.

Learn about Togo's traditional religious practices and take a tour of the incredible Danakil Desert in Ethiopia. Plus, visit a city in Georgia where every citizen has a gun.

A mysterious site with huge stone blocks is discovered off the coast of Tanzania. In the Guatemalan rainforest, hundreds of human bones are found.

Strange mounds in Transylvania might pinpoint the location of the tomb of the bloodthirsty tyrant believed to have inspired Dracula.

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.

The story begins as a fearless Robert Bruce, King of Scotland, invades Ireland in an attempt to unite the Celtic nations against the English.

The story continues after Robert Bruce and his army invade Ireland in order to unite the Celtic nations against English oppression.

Could there be an otherworldly source of knowledge worth tapping into, one that may be steering the course of human history.

An auction in Allen's old stomping grounds triggers memories of being a 'lone wolf.' The guys find a set of RC race boats.

Experts explore the controversy surrounding the ancient Crystal Skulls, asking what powers might be unleashed if all 13 artefacts were brought together.

In Northumbria, skeletons tell tales of violent death and tenderness, and people curate grave goods in an amazing community project.

One of Ian's most infamous show cars, Space Junkie, returns to the shop. The gem is in desperate need of rehab and Ian brings it back to life.

Chart the rise and fall of the Christian empires of Byzantium, the Crusaders and the Venetians through 10 sites, including St Mark's Basilica.

Visit some of the world's most unusual houses, explore the Bangladeshi city with the largest number of cycle rickshaws and travel to the richest village in all of China.

A volcanic island called Kolombagara, with a secret cave, rises out of the Pacific Ocean. In Vietnam, bones from an unknown animal are found.

A massive hurricane heads toward Florida but something unexpected is in its eye and bizarre marks across the eastern US leave experts baffled.

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.

Tens of thousands of individuals go missing every year and many are never found. This is not a new phenomenon.

Experts investigate the power of the number three in history, science and astronomy. Could its huge significance bear links to extraterrestrial life.

Alice experiences humiliating Tudor justice as she dives into the story of Tudor England by studying the history of Norwich.

Dr Alice Roberts pays tribute to the Bard, visiting Shakespeare's first theatre in London's Shoreditch and sifting through the poet's rubbish.

Visit some of the world's most unusual houses, explore the Bangladeshi city with the largest number of cycle rickshaws and travel to the richest village in all of China.

A volcanic island called Kolombagara, with a secret cave, rises out of the Pacific Ocean. In Vietnam, bones from an unknown animal are found.

A massive hurricane heads toward Florida but something unexpected is in its eye and bizarre marks across the eastern US leave experts baffled.

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.

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.

Discover the key role scientific pioneers played in reshaping our solar system. Plus, learn how technology helped humans explore its furthest reaches.

Tens of thousands of individuals go missing every year and many are never found. This is not a new phenomenon.

Experts investigate the power of the number three in history, science and astronomy. Could its huge significance bear links to extraterrestrial life.

Alice experiences humiliating Tudor justice as she dives into the story of Tudor England by studying the history of Norwich.

Dr Alice Roberts pays tribute to the Bard, visiting Shakespeare's first theatre in London's Shoreditch and sifting through the poet's rubbish.

Season 3-5: Inspired by monster trucks of the past, Ian builds a custom dirt machine using a 4x4 truck and a vintage Pinto body and turns it loose in the desert.

The story of Europe's greatest empires through 10 incredible sights including St Basil's Cathedral, the Palace of Versailles and Schonbrunn Palace.

Meet the man who paints cliffs bright green and explore Zimbabwe's abandoned places. Plus, visit India's largest vegetable market and a truly unique village in China.

A cave bursting with bones is found in the jungles of Mexico. In Hawaii, archaeologists find unusual sculptures with big heads and bulging eyes.

Strange markings could be a coded message with a plot to overthrow the Queen of England and a lake with healing powers holds clues to life on Mars.

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

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

Might our space program already have evidence that intelligent life exists in the universe and that we are not alone.

Experts search ancient accounts of magic for evidence suggesting that the wizards and witches of yesteryear were given otherworldly knowledge by aliens.

Alice studies the history of Cheltenham, Britain's most Regency town. She attends a period society ball, investigates the rigid social hierarchy and more.

A newly discovered town in Devon turns history on its head and there's a shocking find by the Thames - almost 100 baby skeletons.

Meet the man who paints cliffs bright green and explore Zimbabwe's abandoned places. Plus, visit India's largest vegetable market and a truly unique village in China.

A cave bursting with bones is found in the jungles of Mexico. In Hawaii, archaeologists find unusual sculptures with big heads and bulging eyes.

Strange markings could be a coded message with a plot to overthrow the Queen of England and a lake with healing powers holds clues to life on Mars.

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

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

How did a Frenchman living in the 16th century predict so many modern-day disasters? This special explores how one person could see into the future.

Might our space program already have evidence that intelligent life exists in the universe and that we are not alone.

Experts search ancient accounts of magic for evidence suggesting that the wizards and witches of yesteryear were given otherworldly knowledge by aliens.

Alice studies the history of Cheltenham, Britain's most Regency town. She attends a period society ball, investigates the rigid social hierarchy and more.

A newly discovered town in Devon turns history on its head and there's a shocking find by the Thames - almost 100 baby skeletons.

Ian helps his friend Tom build the family cruiser he's been wanting. What appears to be a clean, vintage Ford barn find ends up being a lot more work.

An exploration of 10 sites that defined the power, wealth and brutality of the British Empire's rise and fall.

Experts investigate the 'greys' - mysterious beings with big heads and eyes found carved into rocks. Who are these strange figures and what inspired them.

Did Mother Nature cause the volcanoes, earthquakes and floods of ancient times? Or could aliens have been responsible? Experts investigate.

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.

After a poor start to the war, the Soviet Air Force fought back with brilliant aircraft designs. A look at their domination of the skies from the Russian viewpoint.

Dr Alice Roberts pays tribute to the Bard, visiting Shakespeare's first theatre in London's Shoreditch and sifting through the poet's rubbish.

Humans are found to have lived in Britain earlier than thought when tools are unearthed in Norfolk, while some of our ancestors' customs are revealed at another dig.

Alice tells the story of Roman Britain by studying the history of Chester. She enjoys an authentic Roman feast and checks out an archaeological discovery.

Experts investigate the 'greys' - mysterious beings with big heads and eyes found carved into rocks. Who are these strange figures and what inspired them.

Did Mother Nature cause the volcanoes, earthquakes and floods of ancient times? Or could aliens have been responsible? Experts investigate.

In 1989, 20,000 US troops entered Panama to overthrow military dictator Manuel Noriega and around 500 civilians were killed. What prompted the invasion.

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.

Alice tries some eel pie and investigates the origins of modern surgery as she explores the Norman period of British history by examining the town of Winchester.

Alice experiences humiliating Tudor justice as she dives into the story of Tudor England by studying the history of Norwich.

A young boy makes international headlines when he uses satellite images to discover lost cities of the Maya and trees in China seem to be spelling out a sinister message.

The Last Emperor: The series ends with a look at the demise of the Roman Empire. Despite efforts from the last emperor, the Romans become outnumbered by foreign invaders.

Witness the extraordinary military success of the Blitzkrieg campaign, captured through rare combat footage and first-hand accounts in colour.

Experts investigate the 'greys' - mysterious beings with big heads and eyes found carved into rocks. Who are these strange figures and what inspired them.

Did Mother Nature cause the volcanoes, earthquakes and floods of ancient times? Or could aliens have been responsible? Experts investigate.

This episode delves into Hitler's controlling sexual nature. The four women pursued by him, including his niece, only saw one way out of the relationship - death.

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

In 1989, 20,000 US troops entered Panama to overthrow military dictator Manuel Noriega and around 500 civilians were killed. What prompted the invasion.

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.

From Lao Tzu, Confucius and Mencius to Plato and Aristotle, pick the brains of the great philosophers who have radically changed the way ordinary people have lived.

Experts open up NASA and secret government files. Can they find proof of alien contact in the recent or ancient past.

Experts explore the similarities between huge pyramids across the world. Could extraterrestrials have influenced their construction and design.

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.

The Soviet Union's submarines courted huge controversy in 1945 when they caused massive losses of life at sea. A look from the Russian perspective.

An awe-inspiring year of archaeological digs with Dr Alice Roberts. Roman finds include an amazing coin hoard and a man buried on a pile of dead animals.

In Northumbria, skeletons tell tales of violent death and tenderness, and people curate grave goods in an amazing community project.

Alice looks into the history of York, taking part in a Viking battle and examining an almost 1,000-year-old poo.

Experts open up NASA and secret government files. Can they find proof of alien contact in the recent or ancient past.

Experts explore the similarities between huge pyramids across the world. Could extraterrestrials have influenced their construction and design.

Nazi scientists conducted brutal experiments for an Aryan master race, while zoologists ran their own bizarre trials.

Near the Czech border, a secret German site, "The Giant," tests The Bell, powered by Serum 525, turning all who touch it into rotting living zombies.

A newly discovered town in Devon turns history on its head and there's a shocking find by the Thames - almost 100 baby skeletons.

Alice studies the history of Cheltenham, Britain's most Regency town. She attends a period society ball, investigates the rigid social hierarchy and more.

The myth of Merlin is associated with an arrangement of stones in northern France. Satellite images might finally explain this ancient riddle.

The Mafia's power in Canada becomes clearer. Seven primary mob families are identified and blood spills on the streets of Canada and Italy.

The Rollin' 60s Crips fight for dominance in LA's gang world, facing fierce rivalries as they strive to control the city's streets.

Witness a fallout when the Cleveland Mafia places high-stakes bets in Las Vegas. As fortunes are made and lost, tension mounts back home.

Experts open up NASA and secret government files. Can they find proof of alien contact in the recent or ancient past.

Experts explore the similarities between huge pyramids across the world. Could extraterrestrials have influenced their construction and design.

Often, even skilled professionals are no match for the spirits they encounter, as those hunting in the great outdoors become the ones stalked as prey.

Examine a submerged funerary complex in Greece, ancient mammal footprints preserved by a Turkish volcanic eruption and North American fossils from the post-dinosaur era.

Nazi scientists conducted brutal experiments for an Aryan master race, while zoologists ran their own bizarre trials.

The Special Operations Executive, precursor to MI6, used a foul-smelling substance called 'S liquid' to undermine German and Japanese officers.

Ian has his work cut out for him when he takes on a wild concept car build and breaks all the rules along the way.

Visit Italy's most fascinating ghost town, learn about an edible bird nest in Malaysia and explore the Bollate Prison. Plus, check out a structure dubbed the Dr Seuss House.

96 ancient mummies are unearthed in Chile, while a recently discovered tomb in Egypt leads to an astonishing discovery.

A ghost town covered in a strange, white power emerges from a lake in Argentina and a declassified CIA image uncovers a bizarre, giant Soviet weapon.

Explore the men in charge whose rampant egos and misguided belief in their own abilities led to their country making fatal mistakes in the war.

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

We examine whether shared legends of sky gods and visitors from space point to a planet-wide extraterrestrial connection.

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.

Alice reveals the history of Belfast, the UK's most Victorian city. She visits the shipyards that built the Titanic and gets locked up in the Crumlin Road gaol.

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

Visit Italy's most fascinating ghost town, learn about an edible bird nest in Malaysia and explore the Bollate Prison. Plus, check out a structure dubbed the Dr Seuss House.

96 ancient mummies are unearthed in Chile, while a recently discovered tomb in Egypt leads to an astonishing discovery.

A ghost town covered in a strange, white power emerges from a lake in Argentina and a declassified CIA image uncovers a bizarre, giant Soviet weapon.

From Stonehenge to crop circles and UFO sightings, Britain holds many mysteries. Has this island been a destination for alien visitors throughout history.

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.

There is no safe place. Every day, all around the world, in the most ordinary places, regular people are spotting UFOs.

When your day job involves the oversight of missile silos, nuclear facilities or a military base, the last complication you want is a close encounter with a UFO.

We examine whether shared legends of sky gods and visitors from space point to a planet-wide extraterrestrial connection.

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.

Alice reveals the history of Belfast, the UK's most Victorian city. She visits the shipyards that built the Titanic and gets locked up in the Crumlin Road gaol.

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

Ian builds a Volkswagen Dune Buggy from spare parts found around his home as a wedding present for his wife.

From bustling ports and strategic forts, to cultural quirks and cathedrals of commerce, this episode tells the story of the US through 12 key sites.

Take a closer look at the working conditions of a miner in Indonesia, visit the Petrifying Well in England and tour a village where the houses are simply holes in the ground.

The remains of 10 ancient crocodiles are excavated on the bank of the Nile, while a four-thousand-year-old stone complex is found.

When a man-made island mysteriously appears off the US coast, grisly new evidence points to secret government experiments into psycho-chemical warfare.

Explore how the seeds of Japan's defeat in 1945 were sown a decade earlier with the occupation of Manchuria in China.

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

A look at whether stories of flying serpents, fire-breathing dragons and other-worldly beings are more than mere mythology.

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.

As series two kicks off, Professor Alice Roberts examines Britain in wartime by looking at the coastal town of Dover.

Dr Alice Roberts discovers what Britain was like before the Romans as she examines fascinating finds from the Bronze and Iron Ages.

Take a closer look at the working conditions of a miner in Indonesia, visit the Petrifying Well in England and tour a village where the houses are simply holes in the ground.

The remains of 10 ancient crocodiles are excavated on the bank of the Nile, while a four-thousand-year-old stone complex is found.

When a man-made island mysteriously appears off the US coast, grisly new evidence points to secret government experiments into psycho-chemical warfare.

People claim they have been abducted by aliens. A number of researchers have dedicated their lives to uncovering what is behind this disturbing phenomenon.

Scotland: Scotland has an area called the 'Falkirk Triangle', encompassing the village of Bonnybridge, which claims the highest concentration of UFO activity.

These are first-hand experiences of the most terrifying kind: stories shot through with mystery, fear and endless questions.

Being on an aircraft that comes in close proximity to an object that doesn't appear on radar is a scary experience. Who are they and what do they want.

A look at whether stories of flying serpents, fire-breathing dragons and other-worldly beings are more than mere mythology.

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.

As series two kicks off, Professor Alice Roberts examines Britain in wartime by looking at the coastal town of Dover.

Dr Alice Roberts discovers what Britain was like before the Romans as she examines fascinating finds from the Bronze and Iron Ages.

Ian Roussel starts work on an old unfinished Led Sled project with the inspirational help from Victor Cacho.

Travel through time to explore the past 1500 years of one of the world's most unique and diverse ancient cultures - Japan.

Discover South Korea's seaweed farms, visit an Alaskan town where everyone lives under one roof and check out a flooded passage that leads to the French island of Noirmoutier.

Rocks appear to magically move across a dry lakebed in America, while a major discovery is made in China's Ordos Desert.

A forbidden island points to a strange South American town that locals claim was the home of Adolf Hitler and a pit of bodies suggests fears of a zombie nightmare.

Explore how the Axis Powers' ruthless, brutal occupation and exploitation of other countries contributed to their demise.

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

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.

Pentagon: Craig and Sarah take on the US Navy's Unidentified Aerial Phenomenon videos: the 'Tic-Tac' footage, filmed from the USS Nimitz in 2004.

Alice Roberts explores the Georgian era in her hometown of Bristol, from architectural gems and the world's first chocolate factory to the horror of the slave trade.

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.

Discover South Korea's seaweed farms, visit an Alaskan town where everyone lives under one roof and check out a flooded passage that leads to the French island of Noirmoutier.

Rocks appear to magically move across a dry lakebed in America, while a major discovery is made in China's Ordos Desert.

A forbidden island points to a strange South American town that locals claim was the home of Adolf Hitler and a pit of bodies suggests fears of a zombie nightmare.

In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before.

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.

UFO sightings are at an all time high. What makes these mass sightings incredible is also what makes them terrifying, and what might happen next.

Sometimes, the mysterious unidentified objects people see in the sky touch down and leave physical evidence behind.

Exploring how some archaeologists claim to have found skeletons of extraordinary size. Is it possible the giants actually existed.

Was Dr Hynek right when he ultimately concluded that there is a non-human intelligence on Earth.

Pentagon: Craig and Sarah take on the US Navy's Unidentified Aerial Phenomenon videos: the 'Tic-Tac' footage, filmed from the USS Nimitz in 2004.

Alice Roberts explores the Georgian era in her hometown of Bristol, from architectural gems and the world's first chocolate factory to the horror of the slave trade.

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.

With Victor working on the finial fit and finish of the Packard, Ian restores his 'Space Junkie' once again.

Explore the great historic sites of the Minoan civilisation on Crete, Mycenae in the Peloponnese and the emerging Greek city states such as Corinth.

Uncover the secrets behind the San Bernardo mummies, visit the fascinating Skatopia in Ohio and take a closer look at the living conditions in Siberia.

A major archaeological discovery in Egypt might be connected to the pyramids. Meanwhile, a strange formation is investigated in the Sahara.

An amateur archaeologist finds strange symbols scratched into the Kazakhstan desert and a lake in the Brazilian rain forest turns bright pink.

Victory in war doesn't just require sound military strategy, vital resources and equipment are also critical. Discover how the Axis powers failed in this regard.

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 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.

Rendlesham: Craig Charles joins forces with world-renowned space journalist Sarah Cruddas to investigate some of the most perplexing UFO encounters of recent times.

Alice tells the story of Edwardian Britain by studying the history of Cardiff, Britain's most Edwardian town.

In 1592, Elizabeth I visited Sudeley Castle where a spectacular garden was created. 500 hundred years later, a team of archaeologists hunt for this lost gem.

Uncover the secrets behind the San Bernardo mummies, visit the fascinating Skatopia in Ohio and take a closer look at the living conditions in Siberia.

A major archaeological discovery in Egypt might be connected to the pyramids. Meanwhile, a strange formation is investigated in the Sahara.

An amateur archaeologist finds strange symbols scratched into the Kazakhstan desert and a lake in the Brazilian rain forest turns bright pink.

60 years on, Tony's close encounter has become an obsession. Meanwhile, pilot David presents photographic evidence of the UFO he almost crashed into whilst flying near area 51.

Pentagon: Craig and Sarah take on the US Navy's Unidentified Aerial Phenomenon videos: the 'Tic-Tac' footage, filmed from the USS Nimitz in 2004.

They keep coming back. There are areas around the world that seem to keep attracting UFOs, where objects return to the skies again and again, as if taunting witnesses below.

These are the witnesses that have been literally touched by the unknown. Do these cases hold the answer to the central question of UFOlogy.