This California estate was either haunted by ghosts or the Marx brothers.

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

This giant temperature attraction created some giant electric bills.

The most popular attraction in Southern California was once a flock of ornery bipedal birds that pulled carts.

Southern California’s Theme Park Beginnings.

A massive hydrovolcanic explosion left a half-mile wide crater in Death Valley.

Suburban observatory was personal lab of the father of modern astrophysics.

A pier that used to act as a busy ferry dock is now a decaying favorite of local fisherman and urban artists.

Marta Becket's hand-painted theater in the desert.

A stellar example of Art & Crafts architecture, and a movie set to boot.

Originally the home of chewing gum mogul William Wrigely Jr, it is now the official offices of the Tournament of Roses.

The former Naval shipyard is open for exploring - mostly.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

Guns that have been defending San Francisco since 1904.

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

The southernmost outpost of the Russian Empire in colonial America.

Whiskey lovers, this is your happy place.

Hike amid the palm trees that thrive among Southern California's Indio Hills.

This historic California cemetery holds the bodies of veterans of both the Civil War and the Donner Party.

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

Version of the French Riviera destroyed by the sea.

Former 1954 Del Mar Train Station now serves signature cocktails and delightful culinary treats, and still operates as a Metro stop.

The key to turning shifting dunes into the green oasis of Golden Gate Park.