Across the world, engineers are going to extreme lengths to keep the lights on: harnessing the power of the longest river on Earth, tapping into the raging heat of a live volcano, and building one of the largest offshore wind facilities in the world.

From weapons of mass destruction to tools of astrology, learn how these ancient inventions were developed, why they were developed, and how they've contributed to modern society.

A look ahead at the cataclysmic events that could extinguish the human race.

The team uncover a mysterious Nazi lair in the Argentinean jungle and search for evidence of a missing U-boat that may have transported Hitler out of Europe as Germany collapsed.

Treasure hunters Rick and Marty Lagina are being sought by treasure seekers around the world. They're teaming up with fellow Michigan man Kevin Dykstra to track a smuggled national treasure that dates back to the Civil War.

Nothing beats the taste of a Southern fried meal and Bobby traces its amazing journey to your plate. In Alabama, Bobby wades among 275,000 catfish during feeding time, and discovers how each fish scooped from the pond becomes a fillet within an hour.

A top team of experts examine the most compelling natural disaster footage to inform viewers of what actually happened, and how they compare and contrast with historic disasters.

Featuring cutting edge animation and the expertise of military historians, explore the strategies, tactics and weapons used by ancient commanders including Hannibal, David, Caesar and Alexander.

Across the world, engineers are going to extreme lengths to keep the lights on: harnessing the power of the longest river on Earth, tapping into the raging heat of a live volcano, and building one of the largest offshore wind facilities in the world.

From weapons of mass destruction to tools of astrology, learn how these ancient inventions were developed, why they were developed, and how they've contributed to modern society.

A look ahead at the cataclysmic events that could extinguish the human race.

The team uncover a mysterious Nazi lair in the Argentinean jungle and search for evidence of a missing U-boat that may have transported Hitler out of Europe as Germany collapsed.

Treasure hunters Rick and Marty Lagina are being sought by treasure seekers around the world. They're teaming up with fellow Michigan man Kevin Dykstra to track a smuggled national treasure that dates back to the Civil War.

Nothing beats the taste of a Southern fried meal and Bobby traces its amazing journey to your plate. In Alabama, Bobby wades among 275,000 catfish during feeding time, and discovers how each fish scooped from the pond becomes a fillet within an hour.