Investigate the ways in which ancient intelligence services passed messages over thousands of miles.

This series follows Kevin Dykstra, who has been on an eight-year quest to solve the mystery of what happened to the lost confederate gold of the Civil War.

Continuing this hit series, MonsterQuest uses the latest technology to search for legendary creatures. Worldwide, there have been hundreds of mysterious sightings spanning many centuries.

Rick Edwards and Beau Ouimette find out what the Romans ever did for Central Scotland, the answer being build forts, leave some interesting finds and, as a surprise to some, build a wall that wasnt called “Hadrian”.

Mixed Martial Arts is the world's youngest and fastest growing martial art. Fusing devastating strikes and jabs with merciless chokes and joint locks, MMA incorporates elements of Muay Thai, Judo, wrestling, boxing and Jujitsu.

Many years before modern air travel, the ancient Chinese had learned and were practising the complicated principles of fluid and aerodynamics in the kites they flew, the boats they sailed and the childrens toys they made.

In the 1950s, the tower block was born. But by the 1970s, these cities in the sky became slums. In 2017, missed warnings, vague regulations and corners cut in favour of financial return resulted in the deadliest tower block fire in British history.

From 1987 to the early 1990s, Florida was inundated with UFO sightings, while 90 miles away at Guantanamo Bay, USOs (Unidentified Submerged Objects) were seen rising out of the ocean.

Investigate the ways in which ancient intelligence services passed messages over thousands of miles.

This series follows Kevin Dykstra, who has been on an eight-year quest to solve the mystery of what happened to the lost confederate gold of the Civil War.

Continuing this hit series, MonsterQuest uses the latest technology to search for legendary creatures. Worldwide, there have been hundreds of mysterious sightings spanning many centuries.

Rick Edwards and Beau Ouimette find out what the Romans ever did for Central Scotland, the answer being build forts, leave some interesting finds and, as a surprise to some, build a wall that wasnt called “Hadrian”.

Mixed Martial Arts is the world's youngest and fastest growing martial art. Fusing devastating strikes and jabs with merciless chokes and joint locks, MMA incorporates elements of Muay Thai, Judo, wrestling, boxing and Jujitsu.

Many years before modern air travel, the ancient Chinese had learned and were practising the complicated principles of fluid and aerodynamics in the kites they flew, the boats they sailed and the childrens toys they made.

In the 1950s, the tower block was born. But by the 1970s, these cities in the sky became slums. In 2017, missed warnings, vague regulations and corners cut in favour of financial return resulted in the deadliest tower block fire in British history.

Wolf-like beasts are the stuff of legends, but recently uncovered film footage may prove something frightening is out there. Head into the isolated forests of the Midwest to search for this creature and analyse evidence to finally end this mystery.

In 1947 an unknown object approaching US air space at great speed and a civilian craft out of El Paso were heading towards each other when they disappeared from radar.

Brad Meltzer enlists America's help to find lost and stolen historical artifacts, which are going missing from museums and public collections at an alarming rate.

Could we ever travel faster than the speed of light?

Ancient Astronaut theorists believe the global practice of mummification is not a coincidence, but proof that highly advanced extraterrestrials visited Earth in the distant past.

If people disappeared from Earth, what would happen to metallic objects? Would bridges and buildings collapse? And what would become of the US's secret stash of gold?

Ross first takes on the largest wrecks in Scapa Flow: Germanys sunken WWI fleet. Ross tries to understand why the proud German fleet ended up at the bottom. The trail leads to an experimental British aircraft carrier submarine.

Few martial arts match the exoticism of their country like Silat. Beautiful, yet deadly, Silat was born in the jungles of Southeast Asia. Silat is one of the most intriguing and least understood fighting systems on the planet.

Wolf-like beasts are the stuff of legends, but recently uncovered film footage may prove something frightening is out there. Head into the isolated forests of the Midwest to search for this creature and analyse evidence to finally end this mystery.

In 1947 an unknown object approaching US air space at great speed and a civilian craft out of El Paso were heading towards each other when they disappeared from radar.

Brad Meltzer enlists America's help to find lost and stolen historical artifacts, which are going missing from museums and public collections at an alarming rate.

Could we ever travel faster than the speed of light?

Ancient Astronaut theorists believe the global practice of mummification is not a coincidence, but proof that highly advanced extraterrestrials visited Earth in the distant past.

If people disappeared from Earth, what would happen to metallic objects? Would bridges and buildings collapse? And what would become of the US's secret stash of gold?

Ross first takes on the largest wrecks in Scapa Flow: Germanys sunken WWI fleet. Ross tries to understand why the proud German fleet ended up at the bottom. The trail leads to an experimental British aircraft carrier submarine.

Few martial arts match the exoticism of their country like Silat. Beautiful, yet deadly, Silat was born in the jungles of Southeast Asia. Silat is one of the most intriguing and least understood fighting systems on the planet.

Wolf-like beasts are the stuff of legends, but recently uncovered film footage may prove something frightening is out there. Head into the isolated forests of the Midwest to search for this creature and analyse evidence to finally end this mystery.