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

The remains of a ruined mansion memorialize the 1906 earthquake.

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

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

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

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

One of few lasting examples of the brief octagon craze that developed into folly.

This tall and trim architectural oddity is one of the skinniest buildings in San Francisco.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

One of the most elaborate displays of Jellyfish is on display at the aquarium.

Enormous crabs, bioluminescent jellies, and other amazing creatures from the ocean’s depths—some of which are in an aquarium for the first time ever.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

This lonesome Monterey cypress has survived centuries of wind, salt, and at least one attempt at arson.

Haunting and beautiful trees, doomed to die.

This cabin from the 1850s is one of the first structures built by Chinese immigrants in California.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

A massive volcanic plug is now a protected area that hosts a number of bird species.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

This opulent hotel has been visited by Spider-Man, Charlie's Angels, and the Ghostbusters.

The legendary building that needed ghostly approval before being built.

Historic funicular railway, believed to be the shortest railroad in the world.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

One of Los Angeles's first murals once vibrantly depicted the dangers of United States imperialism.

An Italian restaurant became a rock-and-roll hangout and the lair of the "Hollywood vampires."