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

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

Check out a shovel along with your Shakespeare.

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

Its buzzing collection honors vibrator history.

A huge musical instrument played by the ocean.

A favorite haunt of dinosaur loving children and hallucinogen loving hippies alike.

Furniture tries to escape an abandoned building in San Francisco.

A bronze tribute to a legendary Californian, the self-proclaimed "Emperor of the United States."

Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

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

This abandoned prison castle has become an imposing gallery of graffiti art.

One of the richest places in the United States has a cursed street.

A mental health hospital dating back more than 139 years, now features a museum.