National Geographic

Why is a small region of China home to an extraordinary number of giant holes containing vast, little explored subterranean forests? One professor is on a dangerous mission to find out.

Scientists investigate the possibility that alien life-forms influenced human evolution, citing the existence of strange monuments around the world to support their theory.

This forest is older than the Amazon river. Although Europeans discovered it many centuries ago, it still holds many secrets. A lot of animals live here alone. But most of their lives remain a mystery to us. One of the wonders of the world is locked in the green embrace of the forest.

National Geographic presents a comprehensive view of the spectacular California coastal area known as Big Sur—through the eyes of three intrinsically connected native creatures. Fly with the California condors and capture the panoramic view of Big Sur’s many topside layers, and dive with California’s sea otters to investigate life below the waves. Then, follow the stealthy mountain lions and see how the scavengers, the key-stone species and this top predator are all critical contributors to Big Sur’s unique habitat

With worries about the state of our national security increasing, the Federal Bureau of Investigation has been under more intense scrutiny than ever. This penetrating documentary offers high-security access behind the scenes at the FBI. Rare footage and interviews with agents combine to offer insight as to how the Bureau really operates.

NATIONAL GEOGRAPHIC begleitet ein Team von deutschen und US-amerikanischen Tauchern bei der Erforschung der legendären „Blue Holes" der Bahama-Inseln, kreisrunde, nach oben offene Unterwasserhöhlen, die bis zu 200 Meter tief sind. Da es am Grunde dieser Schächte keinen nennenswerten Wasseraustausch gibt, tummeln sich hier nur besonders widerstandsfähige Einzeller - doch es finden sich auch Fossilien aus längst vergangenen Erdepochen. Vielfach lagen die jetzt überfluteten Höhlensysteme noch vor wenigen tausend Jahren oberhalb des Meeresspiegels, und so haben sich hier auch die Überreste zahlreicher Tiere und sogar von Menschen erhalten. Unterwasserfilmer Wes Skiles beobachtet das Taucherteam bei seinen aufregenden Expeditionen in die Tiefe und liefert spektakuläre Bilder aus einer bislang nahezu unzugänglichen Welt.

Unwrap the secrets of the dead as scientists discover and learn from ancient preserved bodies.

Follow the close analysis of an ancient fight master's manuscript depicting combat techniques and devices used over 500 years ago.

EXTREME is a visually stunning 45-minute journey into the soul of adventure featuring a cast of world champion athletes. Combining incredible extreme sport action with narration from the athletes and an eclectic, contemporary soundtrack, EXTREME explores the paradox of human nature: facing fear from the edge of life.

Lucky Muckers follows the adventures of a few ordinary Londoners who have a most extraordinary hobby: Every week, come rain or shine, Mackie, Ian, Andy, Rae, Tim along with other mudlarks wade through the mud along the banks of the River Thames looking for buried treasure.

How could a civilization that mastered the planet suddenly Collapse? Inspired by the New York Times best-selling book "Collapse: How Societies Choose to Fail or Succeed", NGC time travels 200 years into the future to see what the world would look like after civilization as we know it collapsed. Guided by author Jared Diamond, we'll piece together the remarkable story of what on earth triggered our decline.

When the rumored whereabouts of Osama bin Laden are revealed, the CIA readies a team of seasoned U.S. Navy SEALs for the mission of a lifetime. Despite inconclusive evidence that bin Laden is inside the compound, and ignoring the possible ramifications of an unannounced attack on Pakistani soil, the Pentagon orders the attack. The SEAL Team bands together to complete their mission of justice in a riveting final showdown.

It is one of Egypt's enduring mysteries. What happened to Nefertiti and her husband, Akhenaten - the radical king, and likely father of King Tut? In a dark and mysterious tomb located in the Valley of the Kings, there is a small chamber with two mummies without sarcophagi or wrappings. At times, both have been identified as Queen Nefertiti by scholars, filmmakers and historians. But the evidence has been circumstantial at best.

A behind the scenes look at Google today. From Google's offices in China and Russia to the Googleplex (its Silicon Valley headquarters), uncover why this company's corporate philosophy and attitude is so unique among major companies today.

The most extraordinary warrior of all time, Alexander the Great achieved military conquests that remain unsurpassed to this day. Indeed, the conqueror brought east and west together in the mightiest clash of cultures the world has ever known. But much of his legend remains shrouded in mystery. Join National Geographic on a quest to find the real Alexander and examine what molded and pushed him ever onward toward new horizons.

Forensic investigations are conducted to test the tenets of some of the most common conspiracy theories of 9/11 and the mysteries surrounding the attacks.

Follow Cesar Millans rise from impoverished illegal immigrant to celebrity dog trainer to international superstar. Join Cesar as he embarks on his live world speaking tour, films his new television series in Spain and leads thousands of dogs and owners on a Pack Walk in Washington, D.C. Cesar reflects on his humble past, his family life and his ever-evolving philosophy, which inspires people to improve their relationships with their dogs while becoming the pack leader of their own lives.

It's the most famous military installation in the world, yet it doesn’t officially exist. Area 51, a site for covert Cold War operations, has long been a magnet for crackpots, conspiracy theorists, and the overly curious. While there may not be truth to the rumors that Area 51 is a haven for UFOs and extraterrestrials, it's clear that our government has been up to something in Area 51 for decades, and it turns out there is a kernel of truth to even some of the wildest speculation. Now, after years of silence, for the first time Area 51 insiders spill their secrets and reveal what has really been going on inside the most secretive place on earth.

From the earliest days of Amazonian exploration, stories filtered back about the terrifying ritual practiced by the region's headshrinkers who would shrink an enemy's head to render the vengeful soul powerless. Including rare footage of a reputed real-life ceremony from the 1960s, this documentary probes whether the film is genuine, if this shocking practice still takes place today, and how such a horrific custom evolved among these remote jungle inhabitants. British writer and adventurer Piers Gibbon is determined to find out, as he heads deep into the rainforest to meet the tribes whose superstitions and desire for revenge led to the legend of the headshrinkers. And in the heart of the jungle Piers discovers why it is still so dangerous to seek out the Headshrinkers of the Amazon.