Take a trip down the Orinoco, and get an inside look at the diversity of life sustained by this vital and vibrant river.

Watch one of Alaska's famous rites of summer, as sockeye salmon face hungry bears and steep falls to mate in the upstream waters where they were born.

Thousands of snakes are shipped by air every week in the U.S. We ask the experts how they keep this creepy cargo from re-creating the mayhem of the new movie Snakes on a Plane.

The Philippine government said an eruption was imminent and began mass evacuations after the Mayon volcano made more ominous rumblings.

Global warming may be a worldwide buzz kill, but it hasn't stopped canny entrepreneurs from launching a new beer brewed with water melted from Greenland's ice cap.

Join National Geographic on a 2002 assignment to explore Fidel Castro's Cuba, which has been closed to U.S. visitors for decades.

If you think you know the meaning of "night life," then you haven't gone scuba diving off the Florida Keys after dark. Join divers as they take in the evening show that is the ocean at night.

With their fields of green and grapes, wineries might not seem environmentally unfriendly. But these lush vineyards are coming under increasing fire.

The European Alps could be virtually ice free by the end of this century, a new study warns, as rising air temperatures melt away mountain glaciers.

Explore the deep, dark secret below Great Basin National Park, a little-known network of caverns known as Lehman Caves.

Watch forestry experts tempt wind, flames, and fate by lighting a controlled burn to protect one of the U.S.'s great northern forests.

It's the resting place of countless Stone Age dead, but mystery lives on at Newgrange, a tomb with one feature that seems straight out of Raiders of the Lost Ark.

Take a video tour of one of the United States' oldest neighborhoods, from the landmarks of the Freedom Trail to the bistros of its restaurant row.

The Tuamotu islands near Tahiti seem like a priceless paradise. But experts warn the archipelago may soon vanish under the sea due to global warming.

See the Northwestern Hawaiian Islands, the eye-opening Eden that President George W. Bush has designated a U.S. national monument.