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

This central Nevada cave is the spiritual home of ancient and enigmatic pictographs.

An architect's childhood fantasy treehouse made real.

Native Americans built this circle of stones, which was used to predict astronomical events.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

This wooded grove of beautiful hand-built stone grottos is a hidden gem within a shuttered Franciscan monastery.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

Home to Hollywood history and a very special salt crystal.

A fake mine that was made using real mining techniques which is also used as a community center.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

One of the largest, oldest, darkest, quietest motel rooms in the world.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

The oldest continuously operating Catholic school west of the Mississippi.

A watering hole where the options for seating include a bar, patio, or subterranean cave.

A B&B on a Victorian lighthouse station in San Francisco Bay.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

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

An extensive collection of ancient Egyptian artifacts and mummies.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.