California's own majestic geyser is powered by a subterranean volcano.

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

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

This 19th century train workshop is a treasure trove of railroad history.

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

A replica of the first public theater built in California.

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

Art Deco stylings conceal the true nature of this bridge.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

The capitol city's oldest existing cemetery.

An eccentric home stands out in an otherwise average neighborhood with mosaics, mini topiaries, and kinetic sculpture.

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

This former boomtown "island" is now submerged below Folsom Lake.

The tallest bridge in California was constructed for a project that was eventually cancelled.

Dentist's hated concrete colossi are now beloved icons of the community.