Thousands of pieces of art have been carved into the rock at the site of an ancient volcanic eruption.

A museum devoted entirely to the rattlesnakes and snake-related art.

Eat like pre-Columbian Native Americans in this New Mexico restaurant within the Indian Pueblo Cultural Center.

A commercial fishing boat stranded on the California coast.

A ticket to this nostalgia-soaked arcade comes with free play on more than 40 classic games.

An improbable set of attractive limestone caverns forms the centerpiece of Providence Mountains State Recreation Area, in the heart of the Mojave Desert.

The simple auditorium that launched a pop icon's career into the stratosphere.

A simple statue outside a California Amtrak station honors the overlooked contributions of the "silent spikes."

The last remnant of a tree that helped prove to the world that sequoias are real—and they’re spectacular.

The headquarters of the semiconductor giant has a 10,000-square-foot museum.

A miniature train theme park, free to the public, laying at the base of the Santa Monica Mountains.

Hiding amid the largest camellia collection in the country lies a charming children's maze, donated by a secret admirer.

The flow from this waterfall sometimes comes out of springs below its rim.

This crumbling Death Valley mining complex was known for its use of giant, 20-mule team wagons.

A massive volcanic plug is now a protected area that hosts a number of bird species.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

A herd of 150 bison live on California's Santa Catalina Island and are at the heart of an ongoing debate between environmental protection and economic expansion.

This giant temperature attraction created some giant electric bills.

NASA's leading space science lab started by a co-founder with deep ties to the occult.

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

Inky sludge oozes to the surface of this beach thanks to a rare natural tar seep.

This bizarre hotel on historic Route 66 has been plagued by rumors of paranormal activity.

A charming desert roadside bakery that produces 10 times more bread daily than it has residents in its town.

Each winter this underground cave forms a dazzling ice palace.