2000 years ago, when Washington was still a swamp, the Maya were busy transforming some of the most inhospitable jungle imaginable into the New World’s first powerful metropolis.

Are crystal skulls an elaborate hoax? Or do they possess a great, perhaps even otherworldly power? This episode examines arguably the most controversial of ancient artefacts.

Could a cache of fantastic riches have been buried centuries ago on a tiny island in the North Atlantic? And if such a treasure exists, who buried it?

A new breed of tools allows man to face deadly forces once thought impossible. On this episode: a polar survival suit, a thermal imaging fire fighter mask, and a big wave surfing emergency vest.

The Universe

Dark Matter and Dark Energy make up 96 per cent of the Universe. Discovered only ten years ago, scientists are struggling to comprehend its unusual characteristics and answer the ultimate question; what is the fate of our Universe?

2000 years ago, when Washington was still a swamp, the Maya were busy transforming some of the most inhospitable jungle imaginable into the New World’s first powerful metropolis.

Are crystal skulls an elaborate hoax? Or do they possess a great, perhaps even otherworldly power? This episode examines arguably the most controversial of ancient artefacts.

Could a cache of fantastic riches have been buried centuries ago on a tiny island in the North Atlantic? And if such a treasure exists, who buried it?

A new breed of tools allows man to face deadly forces once thought impossible. On this episode: a polar survival suit, a thermal imaging fire fighter mask, and a big wave surfing emergency vest.

The Universe

Dark Matter and Dark Energy make up 96 per cent of the Universe. Discovered only ten years ago, scientists are struggling to comprehend its unusual characteristics and answer the ultimate question; what is the fate of our Universe?

2000 years ago, when Washington was still a swamp, the Maya were busy transforming some of the most inhospitable jungle imaginable into the New World’s first powerful metropolis.

Are crystal skulls an elaborate hoax? Or do they possess a great, perhaps even otherworldly power? This episode examines arguably the most controversial of ancient artefacts.

Could a cache of fantastic riches have been buried centuries ago on a tiny island in the North Atlantic? And if such a treasure exists, who buried it?

A new breed of tools allows man to face deadly forces once thought impossible. On this episode: a polar survival suit, a thermal imaging fire fighter mask, and a big wave surfing emergency vest.

The team find evidence from one of Scotland's bloodiest eras as they wade through the waters of the River Garry in the Scottish Highlands, the site of the first major clash between Highland Jacobites and the government army.

The Universe

How did life evolve on Earth? What will life look like on other planets? These and other questions will be answered by a diverse group of scientists. Watch as experiments are done to see if life exists on earth-like planets beyond our solar system.

Ever since the 1950s, the United States has been building freeways at an unprecedented rate. Host Michael Guillen takes us on a chariot ride through Ancient Rome and discovers that many of the highway amenities date back over 2000 years.

Reverence for the number three dates back thousands of years, and can still be found today in art, architecture, science, literature and religion. What is it about this number that continues to fascinate mankind?

In a world devoid of people, pythons begin to challenge alligators for control of the Everglades. Elsewhere, Shanghai sinks under the weight of its empty skyscrapers.

Mother Nature continues to wreak havoc: Apocalyptic dust storms suffocate cities around the globe; a tornado chases a family, nearly crushing them; and a volcano erupts almost annihilating the population of the Pacific Northwest.