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

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

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

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

Inside this museum, the history of the Walt Disney Family empire is on full display.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

This private residence was the template for one of the most beloved television homes of all time.

This painted marvel is San Francisco's 400-foot ode to urban biking.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

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

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

The only theatre in the world constructed specifically for sound movement.

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

Its buzzing collection honors vibrator history.

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

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

Floating man-made island and upscale restaurant.

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

Tiki luxury on Nob Hill.

A psychedelic labyrinth on the San Francisco bay.

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

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

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