Oakland's beautiful monumental cemetery.

The world's first permanently occupied mountain-top observatory continues to report on the stars.

A classically inspired temple in Redwood City.

Get fishing gear and craft beer at this restaurant on the pier.

This giant temperature attraction created some giant electric bills.

Where the polar bear watches over everything, and every drink is a double.

This historic tower in the California desert promises visitors a "vortex of good vibes".

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

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

The Giant Lemon of Lemon Grove.

Eat a tasty meal in the house where John Steinbeck was born.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

Elephant seals and sea lions have turned the abandoned buildings on this island into their endangered love shack.

The longest burning light bulb in the world.

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

The southernmost outpost of the Russian Empire in colonial America.

Nuclear waste dump site now an environmental sanctuary.

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

A glimpse into the lives of the the Miwok and Paiute people in Yosemite National Park.

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

The oldest continuously operating church in California.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

This museum boasts the ninth-largest collection of insects in North America.