Icelandic folklore says this giant boulder was ripped from the mountains and placed at its current location, where it became home to elves.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

Take a drunken tour inside the world's largest known geode.

The library of every book lover's dreams.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

A huge musical instrument played by the ocean.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Submerged lava formations create incredible waterworks.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

Watch the newest land on the planet form before your eyes.

This black shoreline is made up of exploded lava particles.

One kilometer of thick brass rod laid out before your eyes.

One of only two commuter aerial tramways in the United States.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

More gold than anywhere else, ever.

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Most famous work of one of Frank Lloyd Wright's sons.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.