Unusually large numbers of dolphins and whales are appearing off the eastern coast of Scotland, where scientists believe the animals have followed their prey to cooler waters.

A forested region in southwestern China that's home to more than 30 percent of the world's giant pandas has been named a World Heritage site by the UN.

Related: See photos of other new World Heritage sites.

Sacred summit, tourist attraction, dangerous volcano. Learn more about Japan's famous Mount Fuji and the cultural traditions meant to stave off the mountain's wrath.

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.

Squeezed into a six-figure shark costume, explorer Fabien Cousteau—Jacques's grandson—dove among great whites for the new TV special Shark: Mind of a Demon.

Related Photos: Shark-Shaped Sub, Inside and Out

"You will believe a man can fly," the old movie posters proclaimed. Well, not quite. But you may be surprised at how rooted in fact the Man of Steel's abilities are.

Related Photos: Animals With "Superman Powers"

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.

President Bush has designated the Northwestern Hawaiian Islands a U.S. national monument, creating the largest marine reserve in the world.

Related video: See the islands and their wildlife.

The warming effects of aircraft vapor trails could be eased with fewer night flights, especially during winter, the report says.

Take a spin down Utah's Colorado River Scenic Byways, from the desert oasis of Zion National Park to the red-rock towers of Bryce Canyon.