Sky History2

What is it about the number 12? It holds divine significance in numerous sacred traditions and it's found repeatedly in ancient architecture. But why.

According to the earliest Tibetan traditions, hidden in the Himalaya Mountains is Shambhala, a kingdom of the gods. Does this mystical realm truly exist.

The brother of millionaire Christopher Foster joins those trying to understand why he killed his wife and daughter in Shropshire in 2008.

Alice Roberts and Matt Williams visit the Neolithic Orkney World Heritage Site, where they explore finds from archaeological digs across the north of Britain.

Alice Roberts and Matt Williams visit sites in the west of Britain, including one uncovering the rituals of Stonehenge.

Alice Roberts and Matt Williams present more outstanding archaeology. The team unearths a mass grave and search the Thames for clues to a 17th century tragedy.

Mike restores a 1971 Super Bee, struggles to sell cars and hunts for a new place to live.

In the Mojave Desert, there is a structure built to bestow everlasting life, and according to the architect, its blueprint is from another world.

Accounts of creatures that can shapeshift from one form to another can be found throughout history. But are they real and do they have otherworldly origins.

A hard-hitting look at the murder of Rachel Nickell, who was sexually assaulted and murdered in front of her two-year-old son on Wimbledon Common in 1992.

The Battle of Leyte Gulf tells the story of the largest sea conflict in history involving Pearl Harbor warships and the largest battleships in the world.

The F15 Eagle immediately turned the tide of the first Gulf War to prove its greatness.

In the Mojave Desert, there is a structure built to bestow everlasting life, and according to the architect, its blueprint is from another world.

Accounts of creatures that can shapeshift from one form to another can be found throughout history. But are they real and do they have otherworldly origins.

The many variants of this single piston engine fighter bomber helped dominate the air to ground attack role in Vietnam, earning quite a reputation.

The definitive combat helicopter debuted in Southeast Asia, serving as transport, gunship, smoke ship, command center, MediVac and many other roles.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Explore classic and underrated aircraft, from WWII fighters to the Screaming Eagles F4, showcasing aviation's evolving history.

Were Betty and Barney Hill really abducted by aliens? Experts investigate. They also explore the mystery of The Mothman, and Travis Walton's disappearance.

The ex-wife and former friends of Colin Ireland cast new light on the psyche of the Southend serial killer who terrorised the London gay scene in 1993.

On the orders of Adolf Hitler, the Nazi invaders of Alderney utilised more than 5,000 slave labourers to build a series of protective fortifications. (1 of.

What will humans find when reaching other planets? And just how dangerous might it be.

In China, a burial site reveals a child's remains marked with peculiar modifications. This raises questions about Chinese mortuary practices and more.

In the Mojave Desert, there is a structure built to bestow everlasting life, and according to the architect, its blueprint is from another world.