Complete town of 5,000 living out at sea on the world's first offshore oil platform.

This eccentric cave dwelling is bizarre even by the standards of a subterranean town.

This beautifully deceptive waterfall is something far different from what it appears to be.

This was once the center of the Birdman cult, and is now a World Heritage Site.

These mammoth-yet-narrow crevasses in the Earth are perfect for taking an otherworldly swim.

A memorial to the murdered Jews of Kaunas.

Microscopic fossils suggest Australia may be the birthplace of sulphur-based life forms.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

These delicate ruins need more tourists to keep them from fading away.

California's oldest existing theater building hosted an impressive cast of celebrities, including hosting Mark Twain's first lecture.

Earth's greatest purely vertical drop at 4,101 feet.

Discover for yourself what Herb Caen referred to as "the best kept secret in the Bay Area."

Where the polar bear watches over everything, and every drink is a double.