Homer's The Odyssey is the most famous epic ever written, a timeless tale of adventure filled with mythological beasts and vengeful gods. But could it have actually happened? Divers have uncovered remains that may be linked to the story of Odysseus.

Worldwide, there have been hundreds of mysterious sightings spanning many centuries. Throughout history, these sightings have spawned countless stories.

Strange structures rusting away at sea… an abandoned concrete pyramid… a huge machine, forgotten in a field... an empty complex in a city. Who built them? And why were they abandoned?

Could aliens have helped humans build huge ancient structures? Experts ask whether standing stones in Carnac, France, were a GPS system for ancient spacecraft.

Ancients get troops to cross a nearly 4,000 foot river, extract oil from the ground without the use of modern drilling technique and build a water tank which contained 3 million cubic feet of water.

Zahi uncovers a cache of mummies at a dig site at Saqqara and discovers a rare and important piece of Egyptian history: a beautiful anthropoid sarcophagus from the 26th Dynasty!

Along with a team of archaeologists, the Vieira brothers discover new evidence about the Goshen Mystery Tunnel, while Jim investigates a giant account unlike anything he has seen before.

The definitive, if not the best, Axis fighter of World War two: we delve into the story of legendary ace Adolf Galland and examine in detail and example of the type in his colours. We also look at the technical heritage the 109 designers left.

Homer's The Odyssey is the most famous epic ever written, a timeless tale of adventure filled with mythological beasts and vengeful gods. But could it have actually happened? Divers have uncovered remains that may be linked to the story of Odysseus.

Worldwide, there have been hundreds of mysterious sightings spanning many centuries. Throughout history, these sightings have spawned countless stories.

Strange structures rusting away at sea… an abandoned concrete pyramid… a huge machine, forgotten in a field... an empty complex in a city. Who built them? And why were they abandoned?

Could aliens have helped humans build huge ancient structures? Experts ask whether standing stones in Carnac, France, were a GPS system for ancient spacecraft.

Ancients get troops to cross a nearly 4,000 foot river, extract oil from the ground without the use of modern drilling technique and build a water tank which contained 3 million cubic feet of water.

Zahi uncovers a cache of mummies at a dig site at Saqqara and discovers a rare and important piece of Egyptian history: a beautiful anthropoid sarcophagus from the 26th Dynasty!

Along with a team of archaeologists, the Vieira brothers discover new evidence about the Goshen Mystery Tunnel, while Jim investigates a giant account unlike anything he has seen before.

Do texts other than the Bible reinforce the idea of Eden? Both the Babylonian Epic of Gilgamesh and Ancient Greek texts speak of a paradise lost. We'll sift through the evidence to decode an age old mystery.

Power tools are not from the modern world, but are in fact thousands of years old. Most would be lost to time and not again for centuries. How was the ancient world able to create such incredible power tools?

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

Brad and the team examine new evidence that points to a former airline employee named Kenny Christiansen, whose own brother suspects he was actually the skyjacker who called himself D.B. Cooper.

The Decoded team pursue rumours of ritual sacrifice and secret agreements that control Americans' lives. Brad finds it difficult to uncover Bohemian Grove's secrets. Sending the team into the Grove proves risky as they call for bail money.

Biblical prophecies are said to be messages and warnings sent from God, but what do they really foretell? Can they be decoded and used to predict mankind's future?

Utah housewife Peggy Layton has stored years worth of food in an underground shelter, and zombie researcher Matt Mogk has developed his own survival plan including a stockpile of weapons specifically chosen to fend off a zombie attack.

The definitive, if not the best, Axis fighter of World War two: we delve into the story of legendary ace Adolf Galland and examine in detail and example of the type in his colours. We also look at the technical heritage the 109 designers left.

Do texts other than the Bible reinforce the idea of Eden? Both the Babylonian Epic of Gilgamesh and Ancient Greek texts speak of a paradise lost. We'll sift through the evidence to decode an age old mystery.

Power tools are not from the modern world, but are in fact thousands of years old. Most would be lost to time and not again for centuries. How was the ancient world able to create such incredible power tools?

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

Brad and the team examine new evidence that points to a former airline employee named Kenny Christiansen, whose own brother suspects he was actually the skyjacker who called himself D.B. Cooper.

The Decoded team pursue rumours of ritual sacrifice and secret agreements that control Americans' lives. Brad finds it difficult to uncover Bohemian Grove's secrets. Sending the team into the Grove proves risky as they call for bail money.

Biblical prophecies are said to be messages and warnings sent from God, but what do they really foretell? Can they be decoded and used to predict mankind's future?

Utah housewife Peggy Layton has stored years worth of food in an underground shelter, and zombie researcher Matt Mogk has developed his own survival plan including a stockpile of weapons specifically chosen to fend off a zombie attack.

The definitive, if not the best, Axis fighter of World War two: we delve into the story of legendary ace Adolf Galland and examine in detail and example of the type in his colours. We also look at the technical heritage the 109 designers left.

Do texts other than the Bible reinforce the idea of Eden? Both the Babylonian Epic of Gilgamesh and Ancient Greek texts speak of a paradise lost. We'll sift through the evidence to decode an age old mystery.