A Hawaiian stairway to heaven—that you can't climb.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

Twin Peaks' real life Double R Diner has been restored to its damn fine television look.

This Cold War missile launch site has been abandoned for 40 years.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Sports history, made in the Arroyo Seco.

The neighborhood of Eagle Rock is named after a gigantic boulder with a shadowy surprise.

A commonwealth favorite in the heart of Pasadena.

One of Hollywood’s favorite government buildings.

A landmark for a trailblazer for female architects and the designer of one of the most famous and opulent buildings in California.

Colorado Boulevard’s historic bookstore, operating since the bustling city of Pasadena was merely some orange groves and a few ostrich farms.

Pasadena’s Stonehenge.

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

A relic from a forgotten bakery chain still spins atop a diner.

Arcadia is home to a haven for nature geeks and 80s TV lovers alike.

Fans of the spicy bright-red sauce can tour where it's made.

Oldest building in California still in use.

This enormous World War II relic is one of the largest wooden structures in the world.

These were the largest wind chimes in the world when artist Tom Van Sant created them for a California mall in 1967.