Inside Secret Societies

For centuries, we've grappled with the mystery of The Holy Grail. Was it really the cup used at the Last Supper by Christ and the Disciples? And where is it today? It's the ultimate adventure, one of history's great detective stories. At the heart of the best-selling novel of all time, The Da Vinci Code, lies the mystery of this most sought-after, yet most illusive, sacred relic. Over the centuries, historians, archaeologists, adventurers, and rulers alike have sought to piece together the ancient puzzle and find the one true Holy Grail. Now, follow award-winning investigative documentarian Bruce Burgess as he follows the clues and goes In Search of the Holy Grail.

According to the Bible, The Ark of the Covenant was a box that housed the two tablets of stone inscribed with the Ten Commandments. Over the centuries it has remained an object of great mystery, inspiring infinite questions. But can modern science shed new light on what the Ark really was?

Filmmaker and journalist Bruce Burgess (Broken Dagger) goes deep into the heart of the greatest secret of the 20th century: Area 51, or "Dreamland", in this award-winning documentary. Along with his camera crew, Burgess sets out to uncover the truth of what is really going on in the most secret military base in the world. Originally a skeptic, Burgess was converted, and now he presents his findings here. Footage of UFOs performing impossible maneuvers under cover of darkness. Multiple aircraft flying over the base are only the beginning of this account of what goes on in a base that is roughly the size of Switzerland. Learn about the unexplained deaths of Area 51 workers, government-funded Black Projects, abductions, and the reverse engineering of extraterrestrial technology. Dreamland goes beyond the perimeter wire, through the fields of motion sensors, past the armed patrols, jet fighters, and attack helicopters to uncover the truth of the greatest secret yet to be exposed.

These are some of the most spectacular examples of abandoned engineering the world has ever known. The series explores how and why they were built, consider the financial and social costs of their failure and examine the environmental and ecological impacts. The series also explores how experts came up with plans to make something beautiful or useful from the ruins.

History's Greatest Hoaxes looks at some of the most spectacular hoaxes that show that you can fool some of the people some of the time, but not all of the people all of the time. It looks at remarkable hoaxes including the Hitler Diaries, the Piltdown Man, the War of the World broadcast, Papillon, the Loch Ness Monster, and the Alien Autopsy film.

The stories of History's Ultimate Spies are woven around many notorious plots and infamous characters, and they'll feature in a series that delves into the psyche of the men and women who set up the networks - or destroyed them.

One man's journey into the world of the so-called 'Bloodline' conspiracy, at the heart of Dan Brown's The Da Vinci Code, where a secret society, the Priory of Sion, claims to have guarded evidence of the marriage of Mary Magdalene and Jesus Christ, their children and their descendants down through the centuries.

An examination of the claims made for Uri Geller's career in espionage.

Dr Tracy Borman goes behind closed doors to reveal the private lives of six historical figures