An ode to the friendship between four Pacific Rim countries.

For nearly 50 years, this San Francisco nonprofit has been serving as a mix of recycling center and art school.

A shining, cold, black organ lies in San Francisco's financial district.

This surreptitious shop is only open five hours per week.

A free, public museum dedicated to the fascinating science of sight.

San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

An overlooked and unassuming engineering marvel.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

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

A hidden subterranean installation offers a view of the sky.

A historic hotel that made a cameo in Hitchcock's classic film has no intention of letting guests forget its fame.

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

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

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.

The remains of a ruined mansion memorialize the 1906 earthquake.

This 19th-century church is now a popular roller rink.

In this century-old literary safehouse, print is alive and well.

A modern mechanical planetary system, part of a 10,000 year clock.

Visible below the waves are memorials to the city's Gold Rush dead.

An essential stop before plundering, BYO Cutlass.

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

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

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