A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

A 140-year-old castle with underground caves hidden in San Francisco.

Overflowing with shipping containers, this location has been transformed into a massive workspace for artists.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

A collection of 20th-century automata, penny arcade games, and musical contraptions.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

This print shop boasts one of the largest pinball arcades in 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.

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

Since 1973, this block has been home to the most concentrated collection of murals in San Francisco.

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

Longtime headquarters of controversial boys' club for the world's wealthiest and most powerful.

This surreptitious shop is only open five hours per week.

A nondescript building that's been functioning as a speakeasy for nearly a century and a half.

The oldest burial ground in the city, final resting place of city founders, Ohlone natives and murderers alike.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

A speck of nature and art in one of San Francisco’s most notorious neighborhoods.

A walk down memory lane in the heart of one of San Francisco's most notorious neighborhoods.

This antique shop specializes in the history of print and design.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

An outdoor urban gallery of large-scale artworks by the world's most influential street artists.

10,000 flowered plants bloom in the City of Roses.