Concrete strongholds stand guard over the Golden Gate.

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

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

An enormous artwork that colorfully celebrates over 150 years of US military achievements.

The capitol city's oldest existing cemetery.

Chewing gum tycoon's memorial lies perched over wife's botanical gardens on Santa Catalina Island.

The cluster of boulders near Fort Irwin is covered in military insignia.

Guns that have been defending San Francisco since 1904.

Cows on a ranch are commonplace, scattered cow bones everywhere? Not so much.

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

'Cause the fence start shaking, the earth was quaking.

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

It should come as no surprise that the world's largest artichoke lies in the town that calls itself the "Artichoke Center of the World."

A New England-style lighthouse along California's beautiful Highway 1 gets a re-do.

The California capital city once stood 10 feet lower than it does today.

Where the writer penned his famous story about a jumping frog.

A giant chess set, minus the psychedelic drug trip.

Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

Oakland's beautiful monumental cemetery.

Forgotten and then destroyed by fire, this was once one of the largest saltwater swimming pools in the world.

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

Honoring the famed folktale author, this California museum looks like it belongs in the Black Forest.

The former Naval shipyard is open for exploring - mostly.