A huge musical instrument played by the ocean.

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

A psychedelic labyrinth on the San Francisco bay.

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

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

Its buzzing collection honors vibrator history.

The tea room that pushed the boundaries of adorable straight into...we can't find the words.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

An overlooked and unassuming engineering marvel.

This shop and studio is dedicated to the art of the book, from letterpress to bookbinding.

This cabin once belonged to one of California's original settlers.

San Francisco Bay's ghost town.