A collection of 20th-century automata, penny arcade games, and musical contraptions.

Its buzzing collection honors vibrator history.

A huge musical instrument played by the ocean.

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

An artsy hidden staircase leads to breathtaking views of San Francisco.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

A trash dump made beautiful by nature's power.

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

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

The best place in the park to test out your throwing arm.

Seven ceramic sculptures are scattered around this California college campus.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.