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

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

This odd little museum holds exhibits on everything from blacksmith equipment to hair jewelry.

A decommissioned Naval base now rents itself out for people who want to blow stuff up.

A dry lake is what remains of a community founded on a real estate scam.

Rising out of miles of farmland, these buttes are sometimes called the world's smallest mountain range.

The legendary statue-hating superintendent of Golden Gate Park is honored with... a statue.

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

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

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

A mesmerizing disco ball-like sculpture along the Sacramento River Walk.

Home of what was the largest hydraulic mine in the world, producing gold and the first diamonds in the U.S.

Masterful ceramic fountain and map of the Pacific Basin.

This nonsensical smiling boat shuttles passengers between two places they could've easily walked between.

A remote crossroads honoring a fallen talent.

One of the largest trees of its kind in California.

This graffiti-covered bridge is the quintessential vision of a place for disillusioned youth to escape the complexities of burgeoning adulthood.

Experience Larry Spring's self-taught "common sense" laws of physics.

Museum dedicated to the preservation of surf culture.

The second building of its name to occupy this location might be the finest flatiron building in San Francisco.

The neighborhood church casts a breast-shaped shadow that locals have come to call the “two o’clock titty.”

This Japanese treats shop may have been the first business to mass-produce fortune cookies in the United States.

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