Historical trolley restoration and operation at History San Jose, Kelly Park.

The taxidermied remains of the "last wild grizzly bear in California" and of the symbol of the state of California.

Guns that have been defending San Francisco since 1904.

Massive prehistoric mammals used these stones as oversized scratching posts.

This strangely vacant Western amusement seems to be an empty tribute to residents of Lucerne Valley.

Southern California’s Theme Park Beginnings.

This graveyard is the eternal home of the residents of a vanished California town.

According to legend it was a nap taken under this tree that kicked off the California Gold Rush.

The diverse and sometimes odd cultural heritage of the Golden State is collected, examined, and displayed in this proud museum.

The remnants of a failed socialist commune can still be found just off a California highway.

Inspiring Earthlings to Boldly Go.

The biggest pinball arcade in the world has over 600 pinball machines, and 300 arcade machines.

In the days before HD projectors and IMAX, some of the most powerful projectors belonged to planetariums.

This abandoned motel doesn't welcome guests anymore, but decay and a creepy atmosphere still call it home.

Established in 1853, this crumbling cemetery sits forgotten on the corner of Church and Chapel in Gold Country.

One of the only known surviving coconut palm trees in the entire state.

Junkbots and mud babies are the masterpieces in this fantastically sci-fi art museum.

This mysterious petroglyph evokes the ancient swastika symbol but was later vandalized with the more troublesome Nazi one.

What began with a single, 357-pound chunk of the Canyon Diablo meteorite grew to be an impressive collection. 

This odd California folly seems like it was almost designed to accumulate urban legends.

A working miniature city designed to teach kids about safety and presumably city planning.

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

The sun acts as a key that only fits this giant keyhole twice a year.

Condemned US Navy seaplane control tower turned officers’ club sits atop Yerba Buena Island.