Sky History 2 HD Monday

Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being

Theorists delve into the stories of people who claim to have mingled with extraterrestrial beings while they were on the brink of death

Artefacts related to medieval Italian warlords and their armies of mercenaries, who provided defence for the country's city states that had great wealth but small standing armies

The Skull and Bones senior secret student society at Yale University, Connecticut, whose past members have become presidents, Supreme Court justices and heads of industry

The tale of orphans living in the Sri Lankan town of Navalady at the time of the 2004 tsunami, and how they miraculously escaped being engulfed by the huge wave

Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being

Theorists delve into the stories of people who claim to have mingled with extraterrestrial beings while they were on the brink of death

Tim Sutherland, Malin Holst and Simon Richardson investigate the discovery of barrels containing well-preserved swords on the site of the final battle of the Hundred Years War

A look at Le Cercle, which started in the post-war years as a Catholic conservative group built to broker European rapprochement. Some claim it now control world politics

Dr Fern Riddell and Dr Karen Bellinger examine how myths passed down through time have become some of the greatest mysteries known today. They begin with pyramids

Once the flagship in the United States Lines, the SS America served her owners for 55 years until she was unceremoniously left abandoned in the Canary Islands

Professor Alice Roberts visits Portsmouth to investigate the history of the Royal Navy, uncovering some uncomfortable truths behind the myth surrounding Lord Horatio Nelson

Recreating the city of Tortosa and Jerusalem's Temple Mount to reveal the secrets of the warrior monks the Knights Templar

Craig and Sarah Cruddas examine the Chicago International Airport O'Hare case of November 2006 - a mass sighting of a flying saucer hovering over a United Airlines airport gate

Ton Jones believes he has found whiskey in a gallon flagon, that was smuggled by Al Capone in the 1920s - but cannot decide whether to sell the alcohol or consume it

Ton Jones and Allen Haff head to California, where they acquire a 1940s arcade game, a Winchester shotgun and an antique crossbow

The stories behind the cursed spirits of noblemen, warrior princes and other royalty wander that haunt the castles of England

The quest continues as a team of archaeological experts sets out to reveal the secrets and mysteries surrounding the Ark of the Covenant

With eight cameras rolling, paranormal experts record bizarre occurrences in one of the most haunted houses in America, the Lizzie Borden house

Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being

Theorists delve into the stories of people who claim to have mingled with extraterrestrial beings while they were on the brink of death

Hitler's invasion of Russia in 1941, which led to campaign of unparalleled barbarism, on a scale of destruction unmatched in history

Dr Fern Riddell and Dr Karen Bellinger examine how myths passed down through time have become some of the greatest mysteries known today. They begin with pyramids

Alice Roberts explores Plymouth's history during the Elizabethan era, visiting the home of Sir Francis Drake, and uncovering his history of piracy and slave trading

Once the flagship in the United States Lines, the SS America served her owners for 55 years until she was unceremoniously left abandoned in the Canary Islands

An investigation into whether Earth's deepest caves could contain secret conduits to other worlds, or harbour evidence that aliens once visited the planet