MOST VIEWED SHOWS

Did you know Thailand has over 50 national parks that make up 14% of the country's total area? And these parks are home to 10%...

Ultra-marathon swimmer and shark advocate Ross Edgley attempts to pit his mind and body against the most formidable predator...

Two of the greatest rock climbers of all time, Alex Honnold and Tommy Caldwell, set off to climb The Devil’s Thumb, a...

A film that honors the life of Sally Ride, the first American woman to travel to space. From Emmy-winning director...

Nat Geo’s Most Amazing Photos follows the world’s most renowned photographers as they scale 100-metre redwood trees, chase...

The rugged coast of our biggest state harbors the most incredible wildlife in America.  When winter breaks, animals make the...

He's passionate about the natural world and loves living off the land, but can Phil Breslin survive Australia's and New...

A veritable temple for Real Madrid fans, we go inside the cutting-edge renovation of the team’s iconic stadium, the Santiago...

The Ice Road heroes face another harsh winter and new challenges. To stay on top and survive, they must take on new...

Secrets of the Zoo gives unprecedented behind-the-scenes access to one of the nation's largest and most popular zoos? The...

In 1989, a maverick scientist stuns the world by finding tons of gold on a deep-ocean shipwreck. What follows is a tale of...

Department of Homeland Security combats cocaine trade in the Caribbean.