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.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A monument to the love people have for their pets.

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

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

The miraculous hydrant that saved the Mission District in 1906.

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

The grand, column-fronted, sculpture-adorned home of the ambitious digital library.

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

27-room home built with the fortune of a sugar magnate.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.

Half of a house.

The oldest dim sum restaurant in the United States is a nostalgic jewel.

This museum in San Francisco's Chinatown is one of the oldest and largest archives of Chinese American history and culture.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

Its buzzing collection honors vibrator history.

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

Tiki luxury on Nob Hill.

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

A unique piece of graffiti offers a little slice of local history and mystery.

A cabinet of curious mathematical models and old calculators.

An ode to one of the first concerts broadcast via satellite.

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.