San Francisco's oldest operating hotel, with a Victorian atmosphere and a "haunted" fourth floor.

The remains of a 12th-century chapter house in Golden Gate Park.

The miraculous hydrant that saved the Mission District in 1906.

This print shop boasts one of the largest pinball arcades in San Francisco.

Tenacious mummies survived dental problems, eternal entombment, and more than their fair share of devastating fires.

A monument to the love people have for their pets.

A promotional sun clock on the site of San Francisco's great raceway.

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

This partially buried wreck is one of the most complete of its kind but is only revealed when the sea allows.

An overlooked and unassuming engineering marvel.

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

The stones that traveled from Spain to eventually become a holy place for San Francisco's nature worshippers.

Gold Rush-era tombstones line the park's paths.

This turn of the century masterpiece has a mysterious goaty interloper.

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

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

A still functioning vaudeville carousel that has operated for over a century boasts a colorful menagerie and past.

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

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

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

Golden Gate Park's historic collection of plants.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

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

The remains of a ruined mansion memorialize the 1906 earthquake.