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

A man-made island in scenic San Francisco Bay.

Sitting atop San Francisco's tallest hill, a cross honors the victims of the Armenian genocide.

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

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

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

Tiki luxury on Nob Hill.

Faceless white figures loom over the city from the rooftop.

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

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

Only hotel where you can legally launder money.

Early prototype for Frank Lloyd Wright's Guggenheim.

These WWII-era murals were initially booed as a libelous portrayal of the American dream but have survived multiple attempts to have them destroyed.

The miraculous hydrant that saved the Mission District in 1906.

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

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

A library and museum dedicated to typography.

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

Frank Lloyd Wright died a year before construction on his largest public project even began.

This abandoned boat was left in place thanks to its rotting beauty.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

An abandoned, unfinished mansion on grounds strewn with lava rocks.

Social saloon from a scrapped trans-Pacific 19th century steamer.

Once the gateway to the utopian dream-village of a Civil War embalmer.