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

Medical and zoological curiosities for sale.

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

The only theatre in the world constructed specifically for sound movement.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Towering basalt columns, a creation of fire and ice.

A trash dump made beautiful by nature's power.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

Bring your own cardboard to the slippery slopes of concrete hidden in a neighborhood park.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

A huge musical instrument played by the ocean.

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

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.