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Ancient alien theorists explore the origins of mythical gods. Could these tales of superhuman beings be based on sightings of extraterrestrials.

Theorists investigate whether sought-after religious relic the Ark of the Covenant could hold connections to our extraterrestrial past.

Throughout time, people have believed mountains were the home of the divine. But could these hilltop spirits have been extraterrestrials.

Henning Franzmeier and his team of archaeologists undertake excavations in Pi-Ramses, hoping to discover the truth about the ancient Egyptian pharaoh Ramses II's lost city. (1 of.

Henning Franzmeier and his team of archaeologists continue their search for the truth about Ramses the Great's lost city, uncovering new secrets and fascinating finds. (2 of.

From ghostly voices to vanishing UFOs, experts investigate puzzling and mysterious signal interferences and break down the meanings behind them.

From ghostly voices to vanishing UFOs, experts investigate puzzling and mysterious signal interferences and break down the meanings behind them.

Throughout ancient cultures there are tales of god-like beings helping our ancestors to build civilisations and teaching them in various disciplines.

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

Series exploring the role of trains in the major conflicts of the past 150 years. Auschwitz survivors explore the railways' part in the Nazis' mass murder.

In the wake of the First World War, Adolf Hitler identifies Benito Mussolini as his model and has one ultimate goal: to gain power in Germany.

Embark on an eye-opening journey as experts investigate the startling mysteries captured by satellites orbiting the Earth: from hidden worlds to unexplainable natural phenomena.

Throughout ancient cultures there are tales of god-like beings helping our ancestors to build civilisations and teaching them in various disciplines.

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

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. (1 of.

Dan ventures behind the battlements of Dover Castle, exploring the underground lairs and a vast network of tunnels that have been used to defend the country for centuries.

In the wake of the First World War, Adolf Hitler identifies Benito Mussolini as his model and has one ultimate goal: to gain power in Germany.

Learn how Lawrence of Arabia used guerilla warfare against the Ottoman Empire's railways. Also, what secrets lie under New York's Grand Central Station.

For 54 years, the Patterson-Gimlin bigfoot film has been the best proof the creature exists. Now with AI technology, the figure is clearer than ever.

Embark on an eye-opening journey as experts investigate the startling mysteries captured by satellites orbiting the Earth: from hidden worlds to unexplainable natural phenomena.

Texan farm workers are confronted by a 200-foot long object in the sky in 1957. In 1979, a UFO releases spiked spheres that leave a man unconscious in Scotland.

In Brazil, three men escape a close encounter. In Canada, a thirteen-year-old boy is blinded temporally after investigating a bizarre object.

Towton: Exploring the impact of the Battle of Towton during the War of the Roses, Karl and Kevin continue their look at how weapons and body armour developed.

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

In the season finale, evidence that Dick Carter was hot on Slumach's trail emerges as map markings lead the team to Pitt Lake for one last attempt to strike gold.

Death in the Valley: What happened to the 22nd Earl of Erroll who moved to Kenya in the 20s to join a hedonistic group of UK expats known as the Happy Valley set.