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

San Francisco's newly reopened hands-on science museum.

A museum befitting the city responsible for supplying the majority of the world's LSD.

Fonts are born and bred here at the oldest letterpress type foundry in the United States.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

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

Gold Rush-era tombstones line the park's paths.

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

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A winding path built in secret on the edge of the continent.

This shop specializes in oddities and Victorian-inspired wonders.

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

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

A psychedelic labyrinth on the San Francisco bay.

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

A huge musical instrument played by the ocean.