Examine how the leech was used as an ancient medical cure and test one on a live patient to see how much blood comes out.

For Kevin Dykstra and his team, an 8-year quest to find a legendary boxcar at the bottom of Lake Michigan has now become a battle against nature itself.

MonsterQuest uses the latest high-tech equipment to take a scientific look at legendary creatures around the world. What will the evidence reveal?

A bloody battle at the ancient city of Dos Pilas leads to the downfall and disappearance of this powerful pre-Columbian warrior society.

Cambodian Blood Sport: From urban fighting pits to the sweltering jungles, our hosts journey into the heart of Pradal Serey to perfect the vicious strikes of this martial art.

A fragment of papyrus worth more than its weight in gold appears at auction, spelling the end for a superstar Oxford don.

A look at what happens when engineering fails. Series 3, .

The team investigate the highly secretive underwater testing facility AUTEC, said to be used by the US Navy for weapons testing and underwater research.

Examine how the leech was used as an ancient medical cure and test one on a live patient to see how much blood comes out.

For Kevin Dykstra and his team, an 8-year quest to find a legendary boxcar at the bottom of Lake Michigan has now become a battle against nature itself.

MonsterQuest uses the latest high-tech equipment to take a scientific look at legendary creatures around the world. What will the evidence reveal?

A bloody battle at the ancient city of Dos Pilas leads to the downfall and disappearance of this powerful pre-Columbian warrior society.

Cambodian Blood Sport: From urban fighting pits to the sweltering jungles, our hosts journey into the heart of Pradal Serey to perfect the vicious strikes of this martial art.

A fragment of papyrus worth more than its weight in gold appears at auction, spelling the end for a superstar Oxford don.

A look at what happens when engineering fails. Series 3, .

The team investigate the highly secretive underwater testing facility AUTEC, said to be used by the US Navy for weapons testing and underwater research.

Examine how the leech was used as an ancient medical cure and test one on a live patient to see how much blood comes out.

For Kevin Dykstra and his team, an 8-year quest to find a legendary boxcar at the bottom of Lake Michigan has now become a battle against nature itself.

MonsterQuest uses the latest high-tech equipment to take a scientific look at legendary creatures around the world. What will the evidence reveal?

A bloody battle at the ancient city of Dos Pilas leads to the downfall and disappearance of this powerful pre-Columbian warrior society.

Cambodian Blood Sport: From urban fighting pits to the sweltering jungles, our hosts journey into the heart of Pradal Serey to perfect the vicious strikes of this martial art.

A fragment of papyrus worth more than its weight in gold appears at auction, spelling the end for a superstar Oxford don.

A look at what happens when engineering fails. Series 3, .

Rick Edwards joins YouTuber and detectorist Beau Ouimette on an underwater hunt to discover the secrets of Hadrian's Wall.

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

Does the Declaration of Independence contain secret messages from the founders of the United States?

Documentary series that reconstructs life on other planets and galaxies, fantasizes about life and all its possible forms in other atmospheres and parallel universe.

Might the United States military really have a secret space programme? And if so, are we preparing for a space-based war with other nations... or other species?

With no humans around, discover the fate of Las Vegas and Atlantic City, where the ocean would tear apart casinos and a new rat pack would take over.

Series examining UFO sightings, alien abductions and government cover-ups, beginning with an investigation into multiple sightings of bright lights in Illinois in 2004.

Egyptologists and engineers join forces to solve the long-held mysteries about the pyramids. Why and how were these ancient wonders built?

Rick Edwards joins YouTuber and detectorist Beau Ouimette on an underwater hunt to discover the secrets of Hadrian's Wall.

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