Masterclass Part 1: Technique & Training

Follow Alex Honnold as he attempts to become the first person to ever free solo climb Yosemite's 3,000 foot high El Capitan wall. With no ropes or safety gear, this would arguably be the greatest feat in rock climbing history.

Iconic snowboarder Travis Rice and friends redefine what is possible in the mountains. Experience the highs, as new tricks are landed and new zones opened, alongside the lows, where avalanches, accidents, and wrong-turns strike.

No ropes. No fear. Free solo legend Alex Honnold risks it all in a high-stakes, live ascent of one of the world's tallest skyscrapers in Taipei, Taiwan.

The life of Canadian mountain climber Marc-André Leclerc as he pushes the boundaries of climbing while on an expedition to Patagonia.

In an unbelievable story of perseverance, free climber Tommy Caldwell and climbing partner Kevin Jorgeson attempt to scale the impossible 3000ft Dawn Wall of El Capitan.

In the shady campgrounds of Yosemite valley, climbers carved out a counterculture lifestyle of dumpster-diving and wild parties that clashed with the conservative values of the National Park Service. And up on the walls, generation after generation has pushed the limits of climbing, vying amongst each other for supremacy on Yosemite's cliffs. "Valley Uprising" is the riveting, unforgettable tale of this bold rock climbing tradition in Yosemite National Park: half a century of struggle against the laws of gravity -- and the laws of the land.

14-year-old Laura Dekker sets out on a two-year voyage in pursuit of her dream to become the youngest person ever to sail around the world alone.

This documentary starring climber Alex Honnold and famous biologist Bruce Means document their expedition to the South American sky islands in search of new species and discoveries. Follows elite climber Alex Honnold and a world-class climbing team led by National Geographic Explorer and climber Mark Synnott on a grueling mission deep in the Amazon jungle as they attempt a first-ascent climb up a 1000 foot sheer cliff.

James Cameron and Simcha Jacobovici go on an adventure to find the lost city of Atlantis by using Greek philosopher Plato as a virtual treasure map.

A comprehensive 12-part documentary on the making of "Spider-Man 2," covering everything from pre-production to premiere.

African Cats captures the real-life love, humor and determination of the majestic kings of the savanna. The story features Mara, an endearing lion cub who strives to grow up with her mother’s strength, spirit and wisdom; Sita, a fearless cheetah and single mother of five mischievous newborns; and Fang, a proud leader of the pride who must defend his family from a once banished lion.

An unlikely team of activists and innovators hatches a bold mission to save endangered species.