California's longest-running tourist attraction is a stump.

This 19th century hydroelectric powerhouse was the first of its kind.

The longest covered bridge west of the Mississippi River.

Where the first "expert riders, willing to risk death daily" for the Pony Express were recruited.

A replica of the first public theater built in California.

Art Deco stylings conceal the true nature of this bridge.

A plaque and memorabilia collection mark where A&W got its start.

The southernmost outpost of the Russian Empire in colonial America.

A masterpiece in Golden Gate Park by virtue of the artist’s debt.

Inside this museum, the history of the Walt Disney Family empire is on full display.

Chevron maintains one “Standard” brand station per state so it doesn’t lose the trademark.

This giant shopping mall still holds signs of its automotive past.

This subtle Berkeley paving stone actually marks off a lawless tube of air that extends into space.

Giant jewel-toned statues fill the grounds of this Cambodian Buddhist temple in California.

This hidden amusement park is a magical escape for kids and kids-at-heart.

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

The U.S. Fish Commission’s effort to mass produce carp.

Electrical pylon in the shape of Disney's beloved mouse.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

I Street Bridge is the heaviest swinging center bridge in the United States.

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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.