Chasing accounts of giant skeleton discoveries, Jim and Bill Vieira follow in the footsteps of Abraham Lincoln, who was fascinated by tales and legends of ancient colossi.

In 9 AD, a ferocious Germanic chieftain, Arminius, slaughtered General Varus' army at the Teutoburg Forest in a landmark battle that would define the edge of the empire.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs. A shocking new encounter pulls them to another part of the U.S.A. where two more military eyewitnesses risk their career.

Life After People

Water gives life, but it can also destroy. Rain will flood New Orleans, and when power goes out in the city's aquarium, it spells doom for thousands of animals.

Stephen Taylor and Suggs head to Lincolnshire to dig up the remains of a Boulton Paul Defiant plane, one of the best British interceptor night-time fighter planes, shot down by the Luftwaffe during the Hull Blitz of March 1941.

The team probes some of the largest sightings of alleged UFOs ever recorded over the English Channel, including two eerie bright yellow flat objects spotted by pilots in 2007.

Zahi wants to see if the long-forgotten Falcon Galleries can be restored as a new tourist destination. Inside, not only are there thousands of mummified birds, but deadly snakes and scorpions, too!

He was the Norse protector god who battled ogres and a giant serpent. But do historians believe he existed? New discoveries finally unlock the truth behind Thor, god of thunder.

Chasing accounts of giant skeleton discoveries, Jim and Bill Vieira follow in the footsteps of Abraham Lincoln, who was fascinated by tales and legends of ancient colossi.

In 9 AD, a ferocious Germanic chieftain, Arminius, slaughtered General Varus' army at the Teutoburg Forest in a landmark battle that would define the edge of the empire.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs. A shocking new encounter pulls them to another part of the U.S.A. where two more military eyewitnesses risk their career.

Life After People

Water gives life, but it can also destroy. Rain will flood New Orleans, and when power goes out in the city's aquarium, it spells doom for thousands of animals.

Stephen Taylor and Suggs head to Lincolnshire to dig up the remains of a Boulton Paul Defiant plane, one of the best British interceptor night-time fighter planes, shot down by the Luftwaffe during the Hull Blitz of March 1941.

The team probes some of the largest sightings of alleged UFOs ever recorded over the English Channel, including two eerie bright yellow flat objects spotted by pilots in 2007.

Zahi wants to see if the long-forgotten Falcon Galleries can be restored as a new tourist destination. Inside, not only are there thousands of mummified birds, but deadly snakes and scorpions, too!

He was the Norse protector god who battled ogres and a giant serpent. But do historians believe he existed? New discoveries finally unlock the truth behind Thor, god of thunder.

Chasing accounts of giant skeleton discoveries, Jim and Bill Vieira follow in the footsteps of Abraham Lincoln, who was fascinated by tales and legends of ancient colossi.

In 9 AD, a ferocious Germanic chieftain, Arminius, slaughtered General Varus' army at the Teutoburg Forest in a landmark battle that would define the edge of the empire.

Evidence continues to mount and patterns emerge, as a group of former U.S. government insiders seek the truth behind UFOs. A shocking new encounter pulls them to another part of the U.S.A. where two more military eyewitnesses risk their career.

Life After People

Water gives life, but it can also destroy. Rain will flood New Orleans, and when power goes out in the city's aquarium, it spells doom for thousands of animals.

Stephen Taylor and Suggs head to Lincolnshire to dig up the remains of a Boulton Paul Defiant plane, one of the best British interceptor night-time fighter planes, shot down by the Luftwaffe during the Hull Blitz of March 1941.

Evolve

Engineering an Empire

The ancient Greeks laid a foundation that supported nearly 3,000 years of European history. How did they build structures including Agamemnon's Tomb and the Parthenon?

Cities Of The Underworld

Istanbul is one of the most dynamic and exotic cities in the world. It's where east meets west. Teamed with leading archeologists and experts, come along as we peels back the layers of the past.

UFOs are the biggest mystery of our time and somebody - or something - seems determined to keep it that way.

Gunpowder tearing apart human flesh and rockets destroying entire cities. Advances in technology have led to powerful weapons but were these the product of human innovation or created with help from another otherworldly source?

The discovery of the San Andreas Fault and efforts to understand it are described.

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.