National Geographic Channel Explorer

Venture into the vast underwater graveyards of the Mayan human sacrifices in Mexico.

Explore the science of solitary and discovers what it means to be absolutely and completely alone.

Explore Florence's long-lost architectural layers in some of the city's most famous landmarks.

Go on a journey to an alien moon to answer the basic question: are we alone in the universe?

Delve into the science of sleep to find out why we need it and what happens when we don't get it.

Explore National Geographic's groundbreaking expedition to map a vast cave system of Easter Island.

Travel back 66 million years ago when a meteor struck the Earth, wiping out most life on the planet.

Explore how and why a Siberian tiger escaped the San Francisco Zoo on the fatal 2007 Christmas day.

National Geographic goes inside the ultra violent gang MS-13 which has spread across the country.

Explore the provocative theory that suggests all life is descended from viruses.

Trek through grassland and swamps to explore the ultimate engineering of lions, tigers and leopards.

National Geographic visits the site one of the largest archaeological excavations ever undertaken.

National Geographic explores the science behind what makes a man manly -- his Testosterone Factor.

Join National Geographic as the hidden secrets of the Tyrannosaurus Rex are revealed.

National Geographic takes you for a ride on the EH101, the Presidential Helicopter.

See the USS Eisenhower in action during her first trials before combat.

National Geographic examines the underbelly of the modern gold trade to expose its volatile history.

Is evil a spiritual force, a meaningless superstition, or does it lay in the depths of our conscience?

Explore what happens to us when we die and how mind can sometimes overcome the body.

Follow a team as they assemble a theory that may explain the cause of the mammoths' extinction.

A scientific team is on the baffling case in Sicily unearthing the flawlessly preserved bodies.

National Geographic travels alongside three teams on missions in the "kill zone" of the war in Iraq.

National Geographic investigates the illegal and growing sales of body parts on the black market.

Explore how the war in Afghanistan has inadvertently unleashed a deluge of heroin.