Watch National Geographic Documentaries Season 2 Full Episodes

Recently declassified documents provide new insight into the numerous attempts to kill Hitler -- from briefcase bombs to exploding brandy to sniper...

Ted Koppel Examines America's Recent History of Racial Violence.

Leonardo Da Vinci - the ultimate Renaissance man. In this special, meet some modern-day Leonardos who embody the inventive spirit of the master...

The struggle for food, water and warmth continues as Tim heads into the harsh and freezing Wrangell Mountains to hunt mountain goats.

NGC heads to the Boeing plant in Mesa, Arizona -- where cameras are rarely allowed -- for an in-depth look at the world's most lethal attack...

Great cities in ruins, lost in the jungles of Central America and Mexico. Who would have built these cities? It would take more than a century and...

When John Gotti emerged as head of the Gambino crime family, the media took notice of this charismatic new boss who was tried several times but never...

Marsh Mokhtari travels through India's Himalaya on one of the world's loftiest roads and a mountain pass in the clouds known as Khardung La.

Mysterious and sometimes terrifying, North Korea is perhaps the most secretive country on earth. The countrys leader, Kim Jong Il, rules as a...

Follow the global black market in body parts, from transplant surgeries in America to eager "donors" in India to China where executed prisoners'...

The white robes and fiery crosses of America's oldest terrorist group have become national symbols of hate and violence. Now, one segment of the...

A team assembles sculptures of ice in the city of Harbin.

Is it possible to stop a hurricane? Some scientists think it is.We have chosen seven scientists and inventors who will pitch their theories, and we...

The giant Cave Bear evolved from the Brown Bear in Eurasia about 1.2 million years ago. To combat the cold it hibernated in caves.

The Typhoon... the largest nuclear submarine ever built. In its prime, this first-strike vessel carried 20 nuclear missiles and housed 150 elite...

Railroads are the backbone of American industry. 170,000 miles of track crisscross the country from coast to coast, moving two billion tons of...

Series about history's most mysterious events. This edition investigates Ted Kaczynski, who carried out a bombing campaign against airlines and...

We'll take to the skies with the presidential helicopter Marine One as it flies to the nation's largest city. To protect the President, Marine One...

Journey inside the most secure aircraft in the world, Air Force One, as it carries the President through the confusion and terror of 9/11, a secret...

Death of the Universe takes viewers on an incredible journey through the cosmos in search of answers about how it is all going to end. Three theories...

Inside a top-secret factory in Italy, witness the creation of the newest and most powerful Ferrari yet. Learn the design secrets of this incredible...