Sky History 2 Thursday

Ten discoveries and breakthroughs that challenge traditional beliefs about human history. They include mysterious metal spheres that are not of this world

The top 10 mysterious monoliths, from a 500-ton stone believed to represent an ancient UFO to giant statues said to have been created with advanced technology

The underground world undergoes devastating changes, with a power plant wrecked by superheated steam, and the US nuclear command centre Norad coming under attack

The Vietnam war changed aerial warfare in more ways than one. The Phantom Cobra became the first true fighter bomber of the modern era

Former detectives, victims' relatives and survivors reflect on the Real IRA car bombing that killed 29 people in Omagh, Northern Ireland, in 1998

Ten discoveries and breakthroughs that challenge traditional beliefs about human history. They include mysterious metal spheres that are not of this world

The top 10 mysterious monoliths, from a 500-ton stone believed to represent an ancient UFO to giant statues said to have been created with advanced technology

How the vast and fragile infrastructure hidden underground - from subways and pipelines to one of the big coal seams in the United States - would unravel if humanity vanished

Humanity's strongest building structures were engineered to defy disaster. However, in a world without people, even the mightiest would begin to crack

Scientists explore how Earth would transform if humans vanished. Hidden dangers once held at bay by humans would erupt with force, such as chemical and nuclear plants

A version of the ancient text once buried with an Egyptian scribe, now preserved in the British Museum and thought to be the oldest surviving document in human history

Cameras capture the world from fresh perspectives. Drones explore strange geological occurrences, unique man-made structures, curious creatures and lost civilizations

The Falkirk Triangle, which has plentiful numbers of reports of abduction and missing persons to unexplained interference on airport radar

Reconstructing the 1944 battle of Leyte Gulf using CGI animation to re-create one of the Second World War's largest sea battles between America and Japan

The Allies continued to push from the west to Berlin, while survivors recount the horrors behind finding Germany's concentration camps

The war in the Pacific nears its violent end as a drastic tactic triggers the nuclear age, and the brave men share their thoughts behind the tragic events

Ten discoveries and breakthroughs that challenge traditional beliefs about human history. They include mysterious metal spheres that are not of this world

The top 10 mysterious monoliths, from a 500-ton stone believed to represent an ancient UFO to giant statues said to have been created with advanced technology

The Falkirk Triangle, which has plentiful numbers of reports of abduction and missing persons to unexplained interference on airport radar

How the vast and fragile infrastructure hidden underground - from subways and pipelines to one of the big coal seams in the United States - would unravel if humanity vanished

Humanity's strongest building structures were engineered to defy disaster. However, in a world without people, even the mightiest would begin to crack

Scientists explore how Earth would transform if humans vanished. Hidden dangers once held at bay by humans would erupt with force, such as chemical and nuclear plants

Former detectives, victims' relatives and survivors reflect on the Real IRA car bombing that killed 29 people in Omagh, Northern Ireland, in 1998

The top 10 UFO crashes, from an acorn-shaped object found in the woods of rural Pennsylvania, to a mysterious craft that washed ashore in Japan