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

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

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.

A Victorian mansion, painstakingly reproduced to appear just as the the Munster's family home did on TV.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

These millipedes glow not out of attraction, but as a not-too-subtle warning.

Where America's first doomsday cult awaited the end of the world.

Travelers exchange letters with woodland creatures at this mini post office.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Treehouse motel and treehouse-building school.

A wall of chewing gum moonlights as collective art.

The site of murders and Satanic cult gatherings.

From scholastic to sepulchral - now under reconstruction.

Moonbows over Kentucky.

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

A storybook European village in Berkeley.

A beautiful 62-acre Catholic shrine and botanical garden.

Dig for your own trilobites in this goldmine of invertebrates.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

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

A small flooded ghost town with a few scattered structures remaining.

The largest drain hole in the world.