More than five miles of underground passageways.

Furniture tries to escape an abandoned building in San Francisco.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

Concrete strongholds stand guard over the Golden Gate.

'Cause the fence start shaking, the earth was quaking.

An alley covered with 20 years of bubble gum.

Once close to extinction, there is no shortage of elephant seals on the beaches of Año Nuevo State Park.

Oldest building in California still in use.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

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

A man-made island in scenic San Francisco Bay.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

A Mysterious Masonic tomb in San Luis Obispo.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

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

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

An essential stop before plundering, BYO Cutlass.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

A hotel and restaurant serving as the mecca of kitsch.

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

A huge musical instrument played by the ocean.

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