Sky History2

Travel to Abu Dhabi's incredible Masdar City, check out the Wieliczka Salt Mine in Poland and visit an Indian village where the houses don't have doors.

A girl finds a 1000-year-old skull that may prove aliens once walked the planet, and ancient stone carvings could rewrite the story of evolution.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

Jets are scrambled to intercept a UFO, but find they are unable to complete their Shoot Down Order.

For decades, governments around the world have investigated UFO sightings. How are these top-secret studies conducted.

A team of experts investigate some of the most well-known UFO cases of the last 75 years, hoping to uncover the truth.

Many believe that extraterrestrial secrets are not just limited to the military - so could deathbed confessions provide evidence of the existence of UFOs.

Two cousins encounter a "mothership" three times the size of a football stadium in 1996. In 1967, guards at an air force base in Montana spot a UFO and all hell breaks loose.

In 1993, a teenage girl walking her dog in Shropshire, England, witnesses a cylindrical object in the sky. School kids in Florida report multiple UFO sightings in 1967.

Archaeologists study skeletal remains, uncovering stories of medieval life and ancient diseases like an unusual form of Paget's disease.

Stories of heroes and the villains encountered on their adventures are among the most thrilling in all mythology - but they come with controversial theories.

Discover the Lair of the living god and the Super Warrior of the ancient world, along with the riches and bloodshed in the California deserts.

Decode the secrets of long-lost human settlements, uncovering a Norwegian mound, a prehistoric stone circle and a lost city in the cradle of civilisation.

Travel to Abu Dhabi's incredible Masdar City, check out the Wieliczka Salt Mine in Poland and visit an Indian village where the houses don't have doors.

A girl finds a 1000-year-old skull that may prove aliens once walked the planet, and ancient stone carvings could rewrite the story of evolution.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

Discover the Lair of the living god and the Super Warrior of the ancient world, along with the riches and bloodshed in the California deserts.

The Jericho Head, the Cloudbuster and the Map: Examine a 9,000-year-old clay head, a 1950s machine built to control the weather and a map which could be the oldest ever found.

The Lost Standard, the Steam Gun and the Sacrificial Throne: Investigate an intriguing 3,500-year-old box, a steam-powered gun and a monument that may have been an Aztec throne.