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

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

The capitol city's oldest existing cemetery.

This diner's a kitschy dreamland for anyone whose heart is stuck in the 1980s.

Its dark depths conceal millions of rare, delicate crystal formations.

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

A popular tourist cave with a dark past.

Over 300 taxidermied animals in a Californian restaurant make for a taxidermist's dream and an animal lover's nightmare.

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

The longest burning light bulb in the world.

Location of the most powerful laser in the world, and the potential birthplace of tiny stars.

A ruined hotel with an unlucky history and an eerie present.

The first lookout in Yosemite.

An abandoned, unfinished mansion on grounds strewn with lava rocks.

A sparse, solitary sequoia still stands as a living tribute to the famous conservationist who planted it—but it's dying.

9,000 square feet of vintage and modern mechanical toys, dioramas & sideshow curiosities.

A living time capsule of the 1960s Richardson Bay water-front.

Special tunnels built so that frogs won't be killed when crossing the highway.

This museum boasts the ninth-largest collection of insects in North America.

The rusting remains of the largest assembled WWII fleet on the West Coast.

Across Ring Mountain is a vast collection of Native American petroglyphs unique to the region.

Discover for yourself what Herb Caen referred to as "the best kept secret in the Bay Area."

Where the polar bear watches over everything, and every drink is a double.

This infamous prison has a store where you can buy goods crafted by incarcerated people.