Sky History 2 HD Thursday

Theorists investigate a depiction of a stegosaurus found at Angkor Wat in Cambodia, comtemplating whether it suggest that alien species killed off the dinosaurs

Al catches up with Fred MacAulay as they unravel the deep-seated hostility between England and neighbours to the north - Scotland

The birth of the Chinese Republic through to today, exploring how the last century has impacted the nation's ambitions as a superpower

The city of Melbourne's long history of UFO sightings. This edition catches up with a local person to hear about their incredible UFO encounters

The hunt is on for the Civil War Gold and for $1.5million taken in the Plymouth Mail robbery of 1962. Plus, treasure-seekers search for the Lost Dutchman mine

A team of scientists examines the remains of the Puma Punku temple in Bolivia in a bid to determine whether it could have been designed and constructed by extraterrestrials