Beneath the waters of north western Canada a fifty foot monster is said to lurk. Stories from Canada's Lake Okanagan date back to the First Nation peoples, who lived in fear of this terrifying creature of the lake that became known as 'Ogopogo'.

The WW2 Treasure Hunters are in Cambridgeshire on the former airbase of the Pathfinders Force - the elite flying team whose WW2 exploits were kept top secret.

Has the US military derived various forms of technology, including stealth technology, from downed UFOs?

Explore the controlled explosion of launch, the fiery crucible of re-entry and everything in between to see why space flight is still a highly dangerous pursuit.

Relive the first battle in the conquest of the Promised Land, where a defector in Jericho helped the Israelites infiltrate the city, destroying it from the inside.

When the Vieira brothers head west to explore an island shrouded in mystery, they uncover compelling evidence of giants, but their investigation takes a dark turn.

Hunting for the Lost Dutchman is usually a one-man journey, but Wayne Tuttle is partnering with a team of experts to follow a newly-revealed clue that could finally solve the 500-year-old mystery of America's most famous buried treasure.

All around the world, archaeologists have uncovered mysterious relics revered by ancient cultures for thousands of years. What is it about these ancient objects that draws people to them?

Beneath the waters of north western Canada a fifty foot monster is said to lurk. Stories from Canada's Lake Okanagan date back to the First Nation peoples, who lived in fear of this terrifying creature of the lake that became known as 'Ogopogo'.

The WW2 Treasure Hunters are in Cambridgeshire on the former airbase of the Pathfinders Force - the elite flying team whose WW2 exploits were kept top secret.

Has the US military derived various forms of technology, including stealth technology, from downed UFOs?

Explore the controlled explosion of launch, the fiery crucible of re-entry and everything in between to see why space flight is still a highly dangerous pursuit.

Relive the first battle in the conquest of the Promised Land, where a defector in Jericho helped the Israelites infiltrate the city, destroying it from the inside.

When the Vieira brothers head west to explore an island shrouded in mystery, they uncover compelling evidence of giants, but their investigation takes a dark turn.

Hunting for the Lost Dutchman is usually a one-man journey, but Wayne Tuttle is partnering with a team of experts to follow a newly-revealed clue that could finally solve the 500-year-old mystery of America's most famous buried treasure.

Could the Anunnaki gods be more than legend? Is it possible that civilization made sudden, huge advances in development 5,000 years ago as a result of their presence on Earth?

Mariners have long told stories of beasts stalking the coasts of Florida, but what if new video could prove that old sailors were seeing real sea monsters? A forked tail, ferocious teeth and a large body were all characteristics of the sea monsters.

In 1944, the south-west of England was packed with American troops training for D-Day. Suggs and Stephen discover more about this friendly invasion.

For years, people have claimed to have had direct, personal contact with aliens. The team tracks down some of those who claim to have had such encounters.

From galaxies to black holes, discover the most bizarre and mysterious things in our universe. Plus, learn about actual alcohol clouds floating in space that are filled with organic molecules.

From Roman baths, secret crypts, lost rivers and even Winston Churchill's hidden war rooms, London's underground world has a plethora of stories to tell.

Dr Joann Fletcher and her team are on a mission. They have been called in to solve the mystery of a mummy's demise inside a beautifully painted Egyptian coffin. But none of them are prepared for the grisly tale that they eventually unravel.

A modern jetliner crashes with 228 people on board. An oil refinery erupts in Utah, sending shockwaves through town and damaging over 100 homes. Manhole covers explode around the country, killing people and destroying property.

Could the Anunnaki gods be more than legend? Is it possible that civilization made sudden, huge advances in development 5,000 years ago as a result of their presence on Earth?

Mariners have long told stories of beasts stalking the coasts of Florida, but what if new video could prove that old sailors were seeing real sea monsters? A forked tail, ferocious teeth and a large body were all characteristics of the sea monsters.

In 1944, the south-west of England was packed with American troops training for D-Day. Suggs and Stephen discover more about this friendly invasion.

For years, people have claimed to have had direct, personal contact with aliens. The team tracks down some of those who claim to have had such encounters.

From galaxies to black holes, discover the most bizarre and mysterious things in our universe. Plus, learn about actual alcohol clouds floating in space that are filled with organic molecules.

From Roman baths, secret crypts, lost rivers and even Winston Churchill's hidden war rooms, London's underground world has a plethora of stories to tell.

Dr Joann Fletcher and her team are on a mission. They have been called in to solve the mystery of a mummy's demise inside a beautifully painted Egyptian coffin. But none of them are prepared for the grisly tale that they eventually unravel.

A modern jetliner crashes with 228 people on board. An oil refinery erupts in Utah, sending shockwaves through town and damaging over 100 homes. Manhole covers explode around the country, killing people and destroying property.

Could the Anunnaki gods be more than legend? Is it possible that civilization made sudden, huge advances in development 5,000 years ago as a result of their presence on Earth?