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

Floating man-made island and upscale restaurant.

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

A tribute to the artist and activist who created the rainbow pride flag.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

A modern frieze of ancient Grecian mythological figures playing a national pastime.

The best place in the park to test out your throwing arm.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

This contorting sculpture is the tallest in San Francisco.

Depicting scenes of everyday life - and specific individuals - in Great Depression era San Francisco.

Only hotel where you can legally launder money.

The first AIDS memorial chapel in San Francisco and one of only a few in the U.S.

Radioactivity still cause for concern at this urban explorer's paradise.

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

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

The miraculous hydrant that saved the Mission District in 1906.

A monument to the love people have for their pets.

One of the oldest producers of hand-folded fortune cookies still uses its original secret recipe.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

Golden Gate Park's historic collection of plants.

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

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

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.