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Experts investigate what is potentially one of the biggest conspiracies in history: that Mary Magdalene was Jesus's wife, and the mother of his child.

Experts explore the revolutionary discovery of Gobekli Tepe; bodies unearthed in the muddy landscape of Ireland.

Extraterrestrials or misidentified natural phenomena? Analyse compelling evidence and hear from experts as we explore the secret history of UFOs.

Investigation into the recently released Whitehall files on UFO and alien sightings in Britain, including `The Welsh Roswell' and claims Winston Churchill ordered a UFO cover-up.

On the 27th of January 1968, the French submarine `Minerva' disappears during a training mission. In 2019, the families of the victims succeed in resuming the search for their loved ones.

A new investigation into the 1937 Hindenburg disaster includes a novel set of experiments that tests scenarios that may have led to the Hindenburg's ignition.

This is the incredible story of the giant $400million Bahia Emerald. Unearthed in Brazil in 2001, its discovery marked the start of an astonishing tale of deceit, obsession and greed.

A look at the hidden world of England's virgin queen.

Archaeologist Pepi Papakosta is on a mission to find Alexander the Great's lost tomb. Excavating in the centre of Alexandria, Egypt, she has discovered a rare statue of Alexander and secret tunnels.

As the Mongolian landscape comes under threat, the need to find Genghis Khan's body becomes urgent. Experts set out to trace it, making a hugely important discovery.

Revealing the hidden side of tyrannical ruler King Herod, who was also an architectural mastermind, creating Jerusalem's Second Temple.

Across the moors of Northern Europe, peat-cutters have unearthed hundreds of well-preserved mummies with disturbing injuries. Three children, perfectly preserved, were chosen to die as an Incan sacrifice to their gods.

New findings unravel the mysteries behind the Iceman mummy found in the Ötztal Alps.

An in-depth look at American astronaut Neil Armstrong, the first man to set foot on the Moon.

News and documentary footage are used to detail the life and times of one of the most controversial political figures of the 20th Century.

A look inside the current regime of the Democratic People's Republic of Korea under Kim Jong-un, featuring stories from defectors, celebrities, photographers and journalists who have visited in recent years.

Experts untangle a web of controversies, alleged sightings and academic opinion to cast new light on the baffling mystery of Plato's lost city. The legendary sunken island of Atlantis has puzzled explorers throughout generations.

A delve into the murky past of the Mitchell-Hedges Crystal Skull, allegedly discovered in Belize in the early 20th Century. A contemporary work of art or ancient Mayan artefact?

Experts use new technology to investigate what could be hidden lettering on the Holy Shroud, and journey to Peru on a quest to solve an age-old mystery.

Experts find new evidence pointing to the location of two Biblical sin cities, and battle to decode the mysterious and bizarre Voynich text.

New examinations of the Mona Lisa may reveal hidden numbers and letters, and we explore Malta's Hypogeum.