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It was mankind's finest hour, the greatest technological achievement of the 20th century - the Apollo 11 mission to the Moon.

Do India's Sanskrit texts, with their descriptions of advanced technology, lend themselves to the theory that aliens once walked amongst us.

Experts in the extra-terrestrial examine the Inca ruin and its mysteriously intricate carved blocks.

Hugh and the team uncover a World War Two prisoner of war camp beneath a housing estate in Oldham. Glen Mill held over six thousand enemy prisoners.

Travelling east, Alice discovers a Roman barn conversion, unearthing a Tudor fort and finding intricately carved 10,000-year-old weapons.

Dive into mystery: a sunken Italian city, a Keys underwater cemetery, a South Pacific yellow brick road and strange rocks off Australia.

The guys are in British Columbia, where they're ready to blow a big wad of cash on a few West Coast treasures.

Russia spans over six million square miles of some of the most rugged terrain on Earth, much of which is uninhabited and largely unexplored.

Going by ancient cultures' depictions of gods appearing as animals, could it be that extraterrestrials bear more resemblance to animals than humans.

In the shadow of the war, the Nazi regime gradually advances its "final solution to the Jewish problem.

The battle hits a turning point and Donitz unleashes an advanced torpedo to flip the momentum. Roberts and Laidlaw must devise a strategy to combat the new threat.

Uncover some of the world's most renowned encryptions, revealing how they were decoded, the minds who cracked them and the secrets they masked.

Russia spans over six million square miles of some of the most rugged terrain on Earth, much of which is uninhabited and largely unexplored.

Going by ancient cultures' depictions of gods appearing as animals, could it be that extraterrestrials bear more resemblance to animals than humans.

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.

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

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

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.

In our final episode, we examine how each Axis Power had troubles on their own home front, leading to disaster in the final days of the war.

Monster in the Attic, Houston UFO and Utah Bigfoot: Witness supposed video evidence of a UFO over Houston, a creature in an attic and a sighting of Bigfoot in Utah.

The battle hits a turning point and Donitz unleashes an advanced torpedo to flip the momentum. Roberts and Laidlaw must devise a strategy to combat the new threat.

Uncover some of the world's most renowned encryptions, revealing how they were decoded, the minds who cracked them and the secrets they masked.

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.

At Mexico City's Templo Mayor, archaeologists uncover a 15th-century tower of 600 skulls, revealing new insights into Aztec sacrifice and ritual.

Russia spans over six million square miles of some of the most rugged terrain on Earth, much of which is uninhabited and largely unexplored.