The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

On the Oregon coast there is a natural hole that seems to be draining the sea.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

An emerald-green grotto just a short trip from Austin.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Rippling sand dunes frozen in the Arizona rock.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

Try not to get slimed in Tribeca.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

Everyone remembers Laurie Strode from Halloween, but this is the house where most of the blood was shed.

Hidden in the hills of Hollywood, this secluded Oz-themed garden is dotted with dozens of thrones.

This unlicensed collection of fast-food memorabilia sits on the site of the first ever McDonald's restaurant.

This strangely vacant Western amusement seems to be an empty tribute to residents of Lucerne Valley.

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

What remains of the summer palace of King Kamehameha III.

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