A revolution in engineering is making today's technology as outdated as the horse and buggy. On this episode: Lightning LS-218, the world's fastest production motorcycle; and Hyperloop, a train faster than the speed of sound.

Journey to Bangkok, home to one of the world's most distinctive martial arts, Muay Thai. After witnessing it in action at legendary Lumpinee Stadium, the hosts will travel across the country perfecting the moves of the Science of Eight Limbs.

Venom, the deadliest natural weapon employed in the animal kingdom, has independently evolved in creatures as diverse as jellyfish, insects, snakes and even mammals.

Michael Steinhardt, the largest private collector of antiquities, is forced to turn over $70 million dollars worth of stolen loot and banned from collecting. Steinhardts undoing comes after a four-year investigation known as Operation Demetra.

60BC. Over-powerful generals and money corrupt the Roman Republic. With Rome falling into and out of civil wars, Julius Caesar is to defy all rivals and laws to make himself dictator for life!

Barry and Scott learn the meaning behind one of the symbols on the prized metal ingot they believe once belonged to Captain Kidd, leading them one step closer to a Templar-Pirate connection - and finding lost treasure.

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

A former U.S. Navy radar operator emerges from the shadows to reveal the terrifying day it rained UFOs. U.S. Navy personnel unveil new details including an explanation of why UFOs are sighted over oceans.

A revolution in engineering is making today's technology as outdated as the horse and buggy. On this episode: Lightning LS-218, the world's fastest production motorcycle; and Hyperloop, a train faster than the speed of sound.

Journey to Bangkok, home to one of the world's most distinctive martial arts, Muay Thai. After witnessing it in action at legendary Lumpinee Stadium, the hosts will travel across the country perfecting the moves of the Science of Eight Limbs.

Venom, the deadliest natural weapon employed in the animal kingdom, has independently evolved in creatures as diverse as jellyfish, insects, snakes and even mammals.

Michael Steinhardt, the largest private collector of antiquities, is forced to turn over $70 million dollars worth of stolen loot and banned from collecting. Steinhardts undoing comes after a four-year investigation known as Operation Demetra.

60BC. Over-powerful generals and money corrupt the Roman Republic. With Rome falling into and out of civil wars, Julius Caesar is to defy all rivals and laws to make himself dictator for life!

Barry and Scott learn the meaning behind one of the symbols on the prized metal ingot they believe once belonged to Captain Kidd, leading them one step closer to a Templar-Pirate connection - and finding lost treasure.

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

Carl and Hamilton are back on more familiar ground with a stunning white marble chalice from Hamiltons Knights Templar treasure hoard, from which the relics they explored in the first series came.

The host travels to Greece for a first-hand look at how the maritime expertise of ancient Greece evolved. He examines a modern reproduction of the famed trireme.

Across North America there is something strange and frightening circling overhead. Witnesses tell of human-like creatures that float or hover in the skies and often descend to attack. Legends and folklore tell of strange flying creatures.

An industrial site lost in a forest. An American installation that waged the Cold War. An abandoned tower. A derelict ruin on a sand dune. Who built them? And why were they abandoned?

What compelled ancient man to move colossal stones to build remarkably similar stone monuments all around the world, from the jungles of Costa Rica to Englands countryside?

Venom, the deadliest natural weapon employed in the animal kingdom, has independently evolved in creatures as diverse as jellyfish, insects, snakes and even mammals.

One of the most mysterious ancient civilisations, at its peak the Persian Empire stretched from Greece to India. Why didn't it last?

Concluding this two-part documentary telling how a war with Soviet Russia was always a precondition for the fulfilment of Hitler's racial vision, and how the conflict would finally play out.

Carl and Hamilton are back on more familiar ground with a stunning white marble chalice from Hamiltons Knights Templar treasure hoard, from which the relics they explored in the first series came.

The host travels to Greece for a first-hand look at how the maritime expertise of ancient Greece evolved. He examines a modern reproduction of the famed trireme.

Across North America there is something strange and frightening circling overhead. Witnesses tell of human-like creatures that float or hover in the skies and often descend to attack. Legends and folklore tell of strange flying creatures.

An industrial site lost in a forest. An American installation that waged the Cold War. An abandoned tower. A derelict ruin on a sand dune. Who built them? And why were they abandoned?

What compelled ancient man to move colossal stones to build remarkably similar stone monuments all around the world, from the jungles of Costa Rica to Englands countryside?

Venom, the deadliest natural weapon employed in the animal kingdom, has independently evolved in creatures as diverse as jellyfish, insects, snakes and even mammals.

One of the most mysterious ancient civilisations, at its peak the Persian Empire stretched from Greece to India. Why didn't it last?

Concluding this two-part documentary telling how a war with Soviet Russia was always a precondition for the fulfilment of Hitler's racial vision, and how the conflict would finally play out.

Carl and Hamilton are back on more familiar ground with a stunning white marble chalice from Hamiltons Knights Templar treasure hoard, from which the relics they explored in the first series came.