Graffiti-covered ruins that were once part of a farm owned by a mental hospital.

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

Hand-crafted tributes to a stray cat named "Room 8" now cover this LA elementary school.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

The most beautiful Taco Bell in the world even has surfboard parking.

Acres of natural wonders left behind by a socialite-turned-gardener.

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

The remains of a ruined mansion memorialize the 1906 earthquake.

The remains of a 12th-century chapter house in Golden Gate Park.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

San Francisco's most expensive hotel suite includes a secret passageway rumored to have been used by JFK.

Furniture tries to escape an abandoned building in San Francisco.

This contorting sculpture is the tallest in San Francisco.

This giant head is all that remains of a once proud statue that survived an earthquake but not a fall off of a wagon.

An invitation-only museum of items natural and bizarre, arcane and exotic.

Home to one of the world’s largest collections of model yachts.

Outside San Francisco lies a small clown cemetery and memorial.

A hidden subterranean installation offers a view of the sky.

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

California's most comprehensive horticultural library.

A vast city of the dead, where the deceased outnumber the living by more than a million.

Two pillars set 10 paces apart commemorate the "last notable American duel."

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