Earthquakes, hurricanes, tornadoes, and floods: these colossal powers of nature have had dramatic consequences for humankind. But as massive as these forces are, the stories of heroism and tragedy are very personal. You'll meet heroes, fighting to save homes and lives, but see victims, too, suffering unspeakable tragedies. Join scientists as they study the elemental killers.

A remarkable insider's look at what it takes to climb the highest, most dangerous mountain on Earth-- Mount Everest.

Brief text explains what the sun is made of, its distance from Earth, and its relation to other planets in the solar system.

A fire-breathing dragon takes children on a grand adventure to learn more about volcanoes. Venturing into an active volcano, kids discover how magma inside the Earth begins to bubble and push its way upward, causing steam to escape through cracks overhead. Young readers will travel to active volcano sites around the world to discover the different characteristics and behavior of various volcanoes.

Brief text explores how soil is formed, its layers, and its importance as a natural resource that living things need to survive.

This National Geographic Special shows treasures from the Cliffside of Tombs to the Valley of the Golden Mummies.

Archaeologists uncover the veil of mystery around Egypt's mighty pyramids! Travel deep into the Great Pyramid to witness a remote-control robot penetrating a mysterious shaft. Watch as Egypt's oldest intact sarcophagus is unsealed!