A huge musical sculpture and other art installations on the National Oceanic and Atmospheric Administration grounds.

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

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

A miniature view of the park, caught in time.

With the touch of a button, you can read a randomly selected short story.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

Art from the latest counter-culture; kids who dye their hair blue and believe the future will be a post-apocalyptic water world.

A collection of memorabilia from the Beat era in the back of a San Francisco bookstore.

A promotional sun clock on the site of San Francisco's great raceway.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

An essential stop before plundering, BYO Cutlass.

Its buzzing collection honors vibrator history.