Examining how giant killer bees from South America are spreading northward into the United States and might be adapting to colder temperatures.

Two former soldiers open an investigation into the mysterious order of the Knights Templar, beginning in the holy city of Jerusalem.

There's a growing phenomenon of alleged UFO sightings known as 'Orbs'. Witnesses who see the orbs also report having dreams, premonitions and a deep fear.

Experts conduct gripping experiments to test how long an astronaut might survive on Mars. Could he withstand its radiation and dust storms?

Discover how, after years of rivalry, a small Greek army defeated the Persians through sheer mettle and a brilliant defensive strategy.

Terry Schappert examines the Germanic tribes of 9 AD. Confronted by the vast Roman army, what factors enabled them to defeat their mighty foe on the battlefield?

Daredevil adventurers Jason and Bill travel to the Philippines, where the indigenous fighting style, Eskrima, was formed.

Ancient Alien theorists explore world mythology as they investigate whether extraterrestrials could be responsible for our existence.

Examining how giant killer bees from South America are spreading northward into the United States and might be adapting to colder temperatures.

Two former soldiers open an investigation into the mysterious order of the Knights Templar, beginning in the holy city of Jerusalem.

There's a growing phenomenon of alleged UFO sightings known as 'Orbs'. Witnesses who see the orbs also report having dreams, premonitions and a deep fear.

Experts conduct gripping experiments to test how long an astronaut might survive on Mars. Could he withstand its radiation and dust storms?

Discover how, after years of rivalry, a small Greek army defeated the Persians through sheer mettle and a brilliant defensive strategy.

Terry Schappert examines the Germanic tribes of 9 AD. Confronted by the vast Roman army, what factors enabled them to defeat their mighty foe on the battlefield?

Daredevil adventurers Jason and Bill travel to the Philippines, where the indigenous fighting style, Eskrima, was formed.

Ancient Alien theorists explore world mythology as they investigate whether extraterrestrials could be responsible for our existence.

Examining how giant killer bees from South America are spreading northward into the United States and might be adapting to colder temperatures.

Two former soldiers open an investigation into the mysterious order of the Knights Templar, beginning in the holy city of Jerusalem.

There's a growing phenomenon of alleged UFO sightings known as 'Orbs'. Witnesses who see the orbs also report having dreams, premonitions and a deep fear.

Experts conduct gripping experiments to test how long an astronaut might survive on Mars. Could he withstand its radiation and dust storms?

Discover how, after years of rivalry, a small Greek army defeated the Persians through sheer mettle and a brilliant defensive strategy.

Terry Schappert examines the Germanic tribes of 9 AD. Confronted by the vast Roman army, what factors enabled them to defeat their mighty foe on the battlefield?

Daredevil adventurers Jason and Bill travel to the Philippines, where the indigenous fighting style, Eskrima, was formed.

Creatures Of The Deep: Experts investigate whether alien life forms are thriving in our seas, following Russian cosmonauts' discovery of living plankton in space.

Investigating sightings of a giant winged monster known as "Mothman" across America. Local lore connects the monster to the collapse of a bridge in Virginia, 1967.

The investigation into the Knights Templar takes the team to the ancient city of Acre.

The team sets out to try and uncover the American armed forces' "first response" to UFO encounters.

Physicists and theologians explore the origins of the universe. Could recent discoveries in science reveal how our world was created?

From plague victims being buried alive to body snatchers, illegal distilleries and castle dungeons, Edinburgh's underground world has a myriad of stories to tell.

A museum in the heart of England is home to a mummy without a body. Can the York University investigation team discover who he was, and how he died, from just his head?

A storm takes out nine dams in Colorado, leaving an entire area flooded and its population stranded.

Creatures Of The Deep: Experts investigate whether alien life forms are thriving in our seas, following Russian cosmonauts' discovery of living plankton in space.

Investigating sightings of a giant winged monster known as "Mothman" across America. Local lore connects the monster to the collapse of a bridge in Virginia, 1967.