Historical clues and the expertise of geologists reveal how powerful forces shaped the planet, going back 4.5 billion years to tell the story of how the earth was made. 

Ancient Aliens examines 75 million years of the most credible alien evidence here on Earth, from the age of the dinosaurs, to ancient Egypt, to the skies over the western desert in the present day US.

Series focusing on the architectural triumphs of great civilisations such as the Mayans, Chinese, Russians, Persians, and Byzantines. The programme will use each society's accomplishments as a prism through which to view its history and culture.

If people disappeared from Earth, what would happen to metallic objects? Would bridges and buildings collapse? And what would become of the US's secret stash of gold?

A top team of experts examine the most compelling natural disaster footage to inform viewers of what actually happened, and how they compare and contrast with historic disasters.

Below each major city lies city upon city - each with its fascinating and unknown history. This series will reveal the technological marvels that allowed the construction of one city upon another - literally.

The Jersey Devil, a winged half-bird half-horse, haunts New Jersey. Its screams echo through the Pine Barrens, causing panic. MonsterQuest's expedition and detective investigations seek scientific evidence to unravel the truth behind this legend.

Featuring cutting edge animation and the expertise of military historians, explore the strategies, tactics and weapons used by ancient commanders including Hannibal, David, Caesar and Alexander.