Santa answers a whole sackful of kid's questions about animals who like to live in cold places. Penguins, whales, reindeer and walruses lend a hand with the answers as they sing along with their own versions of Christmas songs.

On August 6th, 1945 a weapon unlike any other was unleashed on the Japanese city of Hiroshima. Four days later, the Japanese surrendered, having been subjected to horrors and devastation previously unknown and unimaginable. A team of scientists and experts from the Manhattan Project was ordered by President Truman to investigate the facts of what really happened when the atomic bomb exploded over Hiroshima. Revealed is what happened moment by moment...

Canyonlands is the little-known jewel of the American National Parks. The stark landscape contains more than 300,000 acres of desert wilderness, towering spires, and spectacular canyons. The rugged terrain is also a history book of time. Its stories stretch from the geologic forces that created this land, to the beginnings of life on earth and from ancient people, to the cowboys and outlaws of the Old West. Venture beyond the tourist hotspots to discover...

What makes methamphetamine ('meth') so powerful, addictive and destructive? Lisa Ling infiltrates the rural epidemic with footage of lab busts, police surveillance and several harrowing personal accounts. Raw inside information on a frequent subject.

Explore 2 million acres of backcountry wilderness, 300 newly discovered waterfalls, and the wildlife of Yellowstone National Park in Wyoming, Montana, and Idaho.

In 1494, Christopher Columbus made a second journey to the Americas with more ships, more men, and a grander mission. His goal: to build the first European colony in the New World. But in just a few short years, his settlement would perish: one-fifth of its inhabitants dead, at least six ships sunk in the bay, and the legacy of Columbus permanently marred. What happened at the ill-fated settlement remains a mystery 500 years later.

Journey from the park's highest peak, at 11,049 feet, to its lowest point, a staggering 282 feet below sea-level, and meet the scientists who are working to protect this wild place as the mercury rises.

A rare scientific odyssey down the Grand Canyon through some of the most treacherous rapids on the planet. From the river cutting through two-billion-year-old stone to the creatures roaming its back-country, the Grand Canyon still has secrets to tell.

Just south of the Equatorial Islands lays a coral reef teeming with sharks and exotic ocean life. Join leading marine ecologists and National Geographic Emerging Explorer and Fellow Enric Sala as they explore this utopia for sharks and discover valuable clues about how to preserve this delicate ecosystem.

A five-part series on deep sea exploration from the people at National Geographic. Using cutting-edge tools and technologies, Dr. Bob Ballard, discoverer of the Titanic, travels to the most remote parts of the world's oceans, revealing new species, natural wonders and archeological finds.