Sky History 2 Sunday

Experts investigate the work of Nasa and secret government files relating to extraterrestrial activity, looking for proof of alien contact in the recent or distant past

Extended episode exploring suggestions of extraterrestrial influence on Earth. Subjects include actions initiated by the US Department of Defence to study UFO sightings

Bobby Bognar reveals the making of foods, from the farming to the processing of the food

An exploration of mining machines throughout history, from the Romans, who created a hydraulic system, to generals who used the devices to dig under castle walls

Few know that one of the US's most mysterious National Parks is in Puerto Rico - a place some believe is home to a creature known as the Chucabara

Many believe Gettysburg National Military Park is haunted by its violent past. This documentary explores some incredible claims about the park's history

An attempt to discover hidden meanings behind Leonardo da Vinci's paintings, to see if the artist was also a prophet, as well as one of history's great philosophers and engineers

Drama-documentary telling the story of the Roman Empire. As the Roman Empire expanded, so did the diversity of exotic beasts brought back to entertain the Colosseum crowds

Documentary profiling Hades, the god of the underworld. Plus, a look at Greek mythology's understanding of the afterlife

A setback occurs in the final stages of restoring a 1964 Parisienne - blowing Mike's budget. The day of Mike's auction - and the biggest financial gamble of his life - arrives

Ted and his team salvage a farmhouse built by settlers who fled the American revolution. Brandon takes a gamble to save some valuable lightning rods

A woman who claims to have encountered shadow people and a man who claims to have used teleportation, travelling from New Jersey to New Mexico in the blink of an eye

Incredible stories about the predictive power of the subconscious, including a man who warns of a plane crash before it happens following a series of vivid nightmares

The Ghost Ship of Northumberland Strait, a ghost ship said to sail ablaze within the Northumberland Strait, a body of water in eastern Canada

The number 12 holds divine significance in numerous sacred traditions and is found repeatedly in ancient architecture. This programme reveals why

A case in which a security officer was knocked unconscious by an unearthly presence at a nuclear launch site in South Dakota. On awakening, he had travelled miles from the site

Inspired by the story of his two cousins who died at sea in the Second World War, the actor heads to Scapa Flow where he finds treasure that could link to his family

The actor continues his adventure in Scapa Flow, plunging down on the wrecks of a German warship and an experimental submarine aircraft called the M2

According to the earliest Tibetan traditions, hidden in the Himalayas is Shambhala, a kingdom of the gods. This programme assesses whether such a mystical realm might truly exist

Recounting an instance when an Australian rancher went to check what was frightening his herd. He spotted a large UFO, which then sped off into the distance

Recounting how members of a Christian youth group observed a falling star while on a hillside. Things became even more unusual when an object landed close to them

Theorists investigate how ancient aliens may have helped to guide and define mankind in the remote past

The Holy Grail - coveted by everyone from Roman Emperors to Adolf Hitler, this sacred object is said to hold incredible powers

The great philosophers who have radically changed the way ordinary people have lived, from Lao Tzu, Confucius and Mencius to Plato and Aristotle

An investigation into the possibility that some extraterrestrials are capable of 'bending' both time and space in order to visit Earth

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena