A concrete arrow from a 1920s network of airmail beacons is still preserved at the western edge of suburban Reno.

Many believe these images represent interstellar lifeforms.

This sign designates the road that leads to the infamous Area 51.

A surviving concrete arrow from a 1920s navigational network is preserved right off a modern freeway.

At the base of the Spring Mountains, a unique nursery packed with desert plants.

A luxurious doomsday bunker hidden beneath an unassuming Las Vegas home offers the best of subterranean suburbia.

A new kind of theme park for adults off the Las Vegas Strip.

Odd outsider art installations surround a Gold Rush-era ghost town.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

This was the first homestead registered after President Abraham Lincoln signed the Homestead Act into law.

Visitors to this museum will uncover a whimsical collection of marbles from across time.

Inside this magical collection, you can buy recipes cooked up by church ladies, motorcycle clubs, and clowns.

A fascinating collection of art made from petrified wood and fossils by two octogenarian twin brothers.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

Underneath downtown Lincoln resides a network of caves that was also the city's first brewery.

A collection of huge, site-specific sculptures sitting in the Montana woods.

Between Missoula and Spokane, a family-owned travel center has an unusual museum in the back.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

With over 340,000 artifacts and counting, there is something for everyone, often called the "Smithsonian of the West."

This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

A cheeky alleyway window hosts tiny rotating exhibits with outsized charm.

A brick-lined alley full of public artwork tucked away in downtown Gulfport.

A subterranean haunt where wine and homemade biscottis are always on the menu.