North America's fresh water seas have been damaged by decades of human abuse. Today, concerned groups attempt to repair past damage and confront new threats to these waters.

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

What do a successful executive from suburban Malaysia, a religious radio commentator from rural South Africa and an Irish-born college professor from the United States have in common? They're all about to embark on the spiritual journey of a lifetime--the sacred Islamic pilgrimage to Mecca known as the hajj. One out of every five people on Earth--some 1.3 billion--practice Islam. Over 80 percent of these Muslims live outside the Middle East, but they...

On April 18, 1906, the greatest natural disaster in American history struck without warning. This is the terrifying and inspiring tale of a pitched battle between man and nature told by the stories of people who lived through it. Includes bonus program Landslide.

Provides a shark's-eye view of one of the most ferocious sharks in the sea.

Inspired by the biblical account of the splendor of his temples and palaces adorned in glittering gold and copper, countless treasure-seekers have set off in search of King Solomon's mines. Yet to date, the evidence supporting the existence of Solomon's mines and other early kingdoms in the Bible has been highly controversial. In fact, there is so little physical evidence of the kings who ruled Israel and Edom that many contend that they are no more...

Fabled Romanovs, led by Nicholas II and Empress Alexandra, ruled imperial Russia in high splendor, despite the disintegration of their divided, war-torn country. In 1918 the rise of Communism violently collided with the rule of royalty when the tsar, his beloved wife, and their children were murdered and buried in a secret grave. Story is told from newly discovered photographs and archival film.

Nova and National Geographic present exclusive access to an astounding discovery of ancient fossil human ancestors. Deep in a South African cave, a special team of experts has brought to light an unprecedented wealth of fossils belonging to a crucial gap in the record of our origins that spans the transition between the ape-like australopithecines (such as the famous Lucy) and the earliest members of the human family. The film describes the 2013 discovery,...