Home to the "Circus" trees created by Axel Erlandson.

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

The site of murders and Satanic cult gatherings.

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

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

The largest drain hole in the world.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

San Francisco's newly reopened hands-on science museum.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

This strange seaside tower got its name from a wealthy eccentric who would hide coins among its stones.

A winding path built in secret on the edge of the continent.

A hotel and restaurant serving as the mecca of kitsch.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

A hand-built folk art installation covered with messages of God's love.

It should come as no surprise that the best view of the Hollywood sign is from Batman's lair.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A trash dump made beautiful by nature's power.

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

The first attack on the continental U.S. during WWII occurred off the coast of a quiet California golf course.

This little gem of Spanish Colonial architecture has been abandoned since the 1950s.

A popular winter vacation destination for migrating monarch butterflies.