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

A huge musical instrument played by the ocean.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

A rococo retro-futurist future-rustic vernacular between yesterday’s tomorrow and the future that never was.

An overlooked and unassuming engineering marvel.

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

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

These subterranean storage areas hold emergency water reserves.

Furniture tries to escape an abandoned building in San Francisco.

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

The remnants of an early American attempt at missile defense.

A school teacher's massive and terrifying self-built castle.