The remains of a ruined mansion memorialize the 1906 earthquake.

An invitation-only museum of items natural and bizarre, arcane and exotic.

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

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

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

Olfactory delights in San Francisco's Botanical Gardens.

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

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

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

Its buzzing collection honors vibrator history.

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

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.

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

A hidden subterranean installation offers a view of the sky.

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

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

Tiki luxury on Nob Hill.

Adolph Sutro's little-known, geographically inaccurate, deprecated monument.

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