The Marianas Trench is the deepest place on earth. Follow a mission into the abyss and explore the geology that has created this deep scar along the ocean floor.

A cheeseburger and a side of fries. Last year, Americans ate over 7 billion of them. And there's an amazing story behind every one. Any idea how they get the sesame seeds to stick to the bun? How do you stuff 20 tomatoes in a ketchup bottle?

It makes up 16% of your weight and is the largest organ in the human body. From the delicate membranes that encased early life to thick, leathery hides, how has skin evolved?

The Knights Templar were an unstoppable Crusader militia for nearly two centuries, their actions shrouded in secrecy. What happened to them?

Centuries ago the prophet Nostradamus had visions of the end of our modern world. Now, scholars decipher his mysterious predictions and learn of terrible tragedies and catastrophic events that threaten to annihilate global populations.

Homer's The Odyssey is the most famous epic ever written. But could it have actually happened? Astronomical clues and recent geological data now suggest evidence with direct links to the story of Odysseus.

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.

A new breed of tools allows man to face deadly forces once thought impossible. On this episode: a polar survival suit, a thermal imaging fire fighter mask, and a big wave surfing emergency vest.

The Marianas Trench is the deepest place on earth. Follow a mission into the abyss and explore the geology that has created this deep scar along the ocean floor.

A cheeseburger and a side of fries. Last year, Americans ate over 7 billion of them. And there's an amazing story behind every one. Any idea how they get the sesame seeds to stick to the bun? How do you stuff 20 tomatoes in a ketchup bottle?

It makes up 16% of your weight and is the largest organ in the human body. From the delicate membranes that encased early life to thick, leathery hides, how has skin evolved?

The Knights Templar were an unstoppable Crusader militia for nearly two centuries, their actions shrouded in secrecy. What happened to them?

Centuries ago the prophet Nostradamus had visions of the end of our modern world. Now, scholars decipher his mysterious predictions and learn of terrible tragedies and catastrophic events that threaten to annihilate global populations.

Homer's The Odyssey is the most famous epic ever written. But could it have actually happened? Astronomical clues and recent geological data now suggest evidence with direct links to the story of Odysseus.

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.

The team travels to Sedona, Arizona, long known for strange phenomena, to interview witnesses to unexplained sightings of lights and objects in the sky.

After discovering a bomb marker, the team brings in an explosives expert to search a cave that may have been a headquarters of General Yamashita during the war. Inside, they uncover a potential booby trap, along with their first hint of treasure.

With only one shot left to convince Marty to join their search, the team heads west where new clues are revealed.

In the 1930s, live alligators were discovered in New York City sewers, fueling legends. Despite eradication efforts, the stories endured. MonsterQuest investigates, searching for evidence to prove the existence and thriving of these monsters.

This time on River Hunters, presenter Rick Edwards and master detectorist Beau Ouimette team up to hunt for relics from the 14th Century bloody and brutal clashes between the English and the Scottish.

Ross prepares to explore the wreck of a sunken steam-age ship, the Iona II. The ship went down with a mystery cargo on board. Determined to solve the mystery, Ross meets with a maritime historian who has uncovered the Iona IIs shocking purpose.

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.

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.

The team travels to Sedona, Arizona, long known for strange phenomena, to interview witnesses to unexplained sightings of lights and objects in the sky.

After discovering a bomb marker, the team brings in an explosives expert to search a cave that may have been a headquarters of General Yamashita during the war. Inside, they uncover a potential booby trap, along with their first hint of treasure.

With only one shot left to convince Marty to join their search, the team heads west where new clues are revealed.

In the 1930s, live alligators were discovered in New York City sewers, fueling legends. Despite eradication efforts, the stories endured. MonsterQuest investigates, searching for evidence to prove the existence and thriving of these monsters.

This time on River Hunters, presenter Rick Edwards and master detectorist Beau Ouimette team up to hunt for relics from the 14th Century bloody and brutal clashes between the English and the Scottish.

Ross prepares to explore the wreck of a sunken steam-age ship, the Iona II. The ship went down with a mystery cargo on board. Determined to solve the mystery, Ross meets with a maritime historian who has uncovered the Iona IIs shocking purpose.

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.

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.

The team travels to Sedona, Arizona, long known for strange phenomena, to interview witnesses to unexplained sightings of lights and objects in the sky.