Sky History 2 Sunday

Experts scrutinise prehistoric ruins, asking whether humans could have built such advanced structures alone, and examine the possibility of alien intervention

Ancient alien theorists explore the origins of mythical gods, and examine whether the tales of superhuman beings could be based on sightings of extraterrestrials

A weather balloon said to have outside Roswell in 1947, which may have actually been alien in nature

The mega-rich love to display their wealth by acquiring flashy vehicles and the ancients were no different, whether it be chariots, horse-drawn carriages or boats

Rich people have the money to build a dream house, but as this episode reveals the richest have the resources to go much bigger

The team tests early examples of airborne technology, including the kite bomb and the world's first parachute

The host explores how some US presidents have exerted power over the economy through various measures, including taxation, imports and exports and law-making

The former US President looks at multiple flashpoints in his nation's history, and the ways Presidents have tackled extremism

The shocking story of two other Cleopatras who ruled Egypt jointly with Ptolemy VIII - a grim tale of incest, murder, rape, mutilation and war

The actor is shocked by what he discovers as he dives on the wreck of a steam-age ship in north Devon, and a potential early slaver ship in Plymouth

Alice Roberts shares the best archaeological discoveries of 2018, starting with the North of the UK and a preserved prehistoric village at the black Loch in Myrton

Alice Roberts investigates best archaeological discoveries of 2018 from the East of the UK, including an ancient lost monument as old as Stonehenge uncovered in Suffolk

The hunt for hidden treasures and why the prospect of their recovery fires the human imagination. However, there is a chance such riches may not exist

The presenter explores how coveted religious artifact the Ark of the Covenant could just disappear and whether it is possible that it could ever be found

A look at the Petrozavodsk incident of 1977 - one of the key moments that helped to determine the official Soviet response to the UFO phenomenon

Part two of two. Documentary revisiting the alleged crash of an extra terrestrial craft at Roswell, New Mexico in 1947

Experts investigate the US government's experiments into teleportation. They also dig into strange happenings at Mount Shasta and Skinwalker ranch

As one of their most controversial scientists, Walter Heisenberg was key in the Nazis' efforts to build an atomic bomb. How close was he to achieving his goal?

The myriad of rumours, theories and disputed historical accounts of Adolf Hitler's sexual psychology, exploring the impact of his alleged and proven sex life on his behaviour

Actress Amanda Holden and author and historian Dan Jones explore how the Tudor sexual appetites changed the course of British history for ever

The top 10 scariest extraterrestrial encounters, from an instance in rural Texas that left onlookers with unexplainable injuries to mysterious cattle mutilations

The Apollo 11 mission to the moon and the suggestion that the moon is actually a giant spacecraft allowing extraterrestrials to monitor Earth

The actor explores the King's Cross underground station fire of November 1987, which ignited under a wooden escalator and claimed 31 lives

The Grenfell Tower fire of June 2017, in which an estimated 70 residents died. The rapid spread of the fire is thought to have been aided by the building's exterior cladding

Investigating cosmism - a belief that human civilization originated in the cosmos. This train of thought is widely held throughout Russia