Where there's quartz, there must be gold. Thus is the story of the mines of Julian, and the titillating times of the Gold Rush.

Guns that have been defending San Francisco since 1904.

A huge musical instrument played by the ocean.

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

Half of a house.

The restored and active Victorian-era final resting place of San Francisco.

Art in the form of a winding, man made crack in stone.

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

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

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

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

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A Biblically-based Natural History Museum.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

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

Furniture tries to escape an abandoned building in San Francisco.

An essential stop before plundering, BYO Cutlass.