America's oldest Italian restaurant is a San Francisco institution.

It is locally loved and ridiculed for literally looking like poop.

Created in 1972, the famous sculptor's intricately detailed monument to San Francisco is overflowing with city landmarks.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

Home of modern dancer famously strangled by her own scarf.

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

The world's first motel is now an administrative building for an apple farm.

This unique bed and breakfast was first constructed during the 1800s by a Russian immigrant family.

The first attack on the continental U.S. during WWII occurred off the coast of a quiet California golf course.

This little gem of Spanish Colonial architecture has been abandoned since the 1950s.

The beautiful behemoth is one of the largest trees of its kind in the United States.

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

Its vast collection details the history of this Santa Barbara beach town.

At 130 years old and 126 feet tall, it is the largest known example of the rare Torrey pine tree.

Pay your respects to departed pets, both celebrity and otherwise.

The restored estate of a wealthy rancher was once at the heart of an unprecedented legal victory.

A hotel and restaurant serving as the mecca of kitsch.

This enormous World War II relic is one of the largest wooden structures in the world.

The final resting place of the songwriter who penned “Take Me Out To The Ball Game."

Megachurch turned Catholic church comprised of 10,000 glass panes.

A small sculpture garden that provides a microcosmic representation of California.

A dwindling menagerie of anthropomorphic oil derrick animals still dot the barren California landscape.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.