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Rise of the Machines: Examining moments of engineering ingenuity which made the difference between triumph and disaster on the battlefield - beginning with World War I.

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

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

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

Halfway through its fourth full year, the fortunes of war were running increasingly in favour of the Allies. The bombing of Hamburg and the Allied Tehran Conference take place.

The horrific story of one of the longest sieges in military history, told from the Russian perspective. More than a million citizens lost their lives.

Archaeologists conduct a dig at Auckland Castle in Co Durham, which 700 years ago was home to a group of power-crazed bishops.

Uncovering the stories behind a Yorkshire garrison's stables and the horse the Germans could not kill.

Rick and Beau return to tackle new rivers in a brand-new series. From Wales to Scotland, the pair investigate the cold and murky waters of historic sites. (2 of.

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

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

Germany invades Poland, sparking global war: Japan expands in Asia and Africa's colonies become key battlegrounds for power and resources.

In 1941, Hitler invaded the USSR. Operation Barbarossa stalls as winter hits and Soviet resistance, fuelled by propaganda, turns the tide.

In the spy game, listening, learning and gaining the ability to eavesdrop requires ingenuity.

Andy embarks on a mission to unearth the Cornish sites of King Arthur, before magnet fishing for Excalibur and visiting the grave of a legendary witch.

Evidence of human activity is found in strange times and places and a new perspective on a biological activity known since the nineteenth century.

As the Roman Republic churns with civil war, Julius Caesar, desperate for fame and honour, embarks on a brutal campaign to annex Gaul and build his own reputation.

As the Roman Empire expands its reaches into what is now Germany, its legions are faced with ferocious Germanic tribesmen.

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

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

With the East Coast adventure slowly coming to an end, Peter and Elroy contemplate what they have found and learned throughout the journey.

The mega-rich love to display their wealth by acquiring flashy vehicles and the ancients were no different, whether it be chariots, horse-drawn carriages or boats.

All wealthy people have the resources to create their ideal home, but these industrial tycoons weren't content with building just one single house.

Germany invades Poland, sparking global war: Japan expands in Asia and Africa's colonies become key battlegrounds for power and resources.

In 1941, Hitler invaded the USSR. Operation Barbarossa stalls as winter hits and Soviet resistance, fuelled by propaganda, turns the tide.

The contestant's next challenge is to make drinking glasses and decanters in a combination of fashion and function.

The remaining contestants must get creative to make colourful works of art out of everyday household items.

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.

It's spring 1944 and on the Eastern Front, the momentum is firmly with allies as the war moves into its final, violent act.

By January 1945, it seemed the end of the war was in sight - but challenges still loomed on the Eastern Front, in the Pacific and in Western Europe. (1 of.

It was one of bloodiest battles in the history of warfare and a turning point in the conflict. This is the story of Stalingrad from a uniquely Russian perspective.

The team search for artefacts from the country's first superhighway - the Bridgewater Canal.

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.

Rick and Beau return to tackle new rivers in a brand-new series. From Wales to Scotland, the pair investigate the cold and murky waters of historic sites. (3 of.

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.

In 1943, Germany fell at Stalingrad, its first major defeat. In the Pacific, Japan lost momentum after the US won at Guadalcanal.

In 1944, D-Day pierces the Atlantic Wall, as Operation Bagration crushes the Wehrmacht in the East. The fall of the Third Reich begins.

For some covert missions, assassination is the goal, and lethal toxins are deployed by spy agencies to kill perceived foes.

Andy is back in Cornwall searching for legends, meeting a real-life mermaid and fishing for Cornwall's infamous sea serpent Morgawr.

Discover five new discoveries that are probably related to potential warfare and one possibly to wildlife.

Attica, a 90-year-old maximum-security prison in upstate New York, has a legacy of violence and inmate abuse stretching back decades.

Situated 25 miles northwest of Kansas City, Leavenworth stood as the largest maximum-security federal prison in the United States for over a century.

The El Chapo Years: Sinaloa and El Chapo aim to be the world's largest drug cartel, but their success is threatened by authorities.

The Gotti Years: When John Gotti, a capo from the Bronx, becomes fed up with the greed of his boss, Paul Castellano, he orchestrates a mob hit.

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.

Was the Ark of the Covenant stolen by King Solomon's son and taken to Ethiopia? Archaeologists investigate new, mysterious leads to uncover the truth.

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

In 1943, Germany fell at Stalingrad, its first major defeat. In the Pacific, Japan lost momentum after the US won at Guadalcanal.

In 1944, D-Day pierces the Atlantic Wall, as Operation Bagration crushes the Wehrmacht in the East. The fall of the Third Reich begins.

The contestants buddy up as they are challenged to make two-piece sculptures.

The remaining contestants are challenged to work with scale, colour and texture to create masterfully crafted botanical-themed pieces.

Discover unidentified objects witnessed by military pilots and a potential alien home in the darkness of space.

A mysterious volcanic island off the coast of Antarctica is explored, while the mummified remains of a teenage girl are found in the Peruvian Andes.

The face of Christ is discovered in a field in Hungary and a photo that claims to show who shot down a passenger jet in Ukraine.

The Men Who Gave the Orders: 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.

Germany invades Poland, sparking global war: Japan expands in Asia and Africa's colonies become key battlegrounds for power and resources.

New evidence reveals advanced civilisations might have existed on Earth thousands of years ago - is it possible that they lived with extraterrestrials.

In numerous ancient cultures, stories were told of ancestors from the Pleiades star cluster - could new scientific findings reveal the truth.

In 1966, a class of Melbourne students spot a UFO and are told never to speak of the incident. A man's car dies in 2009 after he spots a cigar-shaped object in the New York sky.

In 1968, airmen in North Dakota spot a huge UFO over one of the US' most high security Air Force bases. Papua New Guinea village locals report strange objects in the sky in 1959.

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

Andy is back in Cornwall searching for legends, meeting a real-life mermaid and fishing for Cornwall's infamous sea serpent Morgawr.

Discover unidentified objects witnessed by military pilots and a potential alien home in the darkness of space.

A mysterious volcanic island off the coast of Antarctica is explored, while the mummified remains of a teenage girl are found in the Peruvian Andes.

The face of Christ is discovered in a field in Hungary and a photo that claims to show who shot down a passenger jet in Ukraine.

The Men Who Gave the Orders: 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.

Germany invades Poland, sparking global war: Japan expands in Asia and Africa's colonies become key battlegrounds for power and resources.

The cave's eerie acoustics have been associated with supernatural phenomena, earning it a reputation for connecting visitors to the spirit world.

In the ancient Burnt City of Shahre Sukhteh, Iran, archaeologists uncover a remarkable discovery. The oldest known prosthetic eye, made of gold.

New evidence reveals advanced civilisations might have existed on Earth thousands of years ago - is it possible that they lived with extraterrestrials.