This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

There's nothing creepier than a cemetery next to a clown motel.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

This cave was hidden for thousands of years, storing the worldly goods of ancient Native Americans.

Singing sand that stands as the final remains of an ancient lake.

The fossilized remains of ancient California redwoods.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

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

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

The commemorative stone column conceals a secret laboratory.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

A man-made island in scenic San Francisco Bay.

Big gun installations, built over a massive cemetery, now abandoned & hidden in trees.

San Francisco's newly reopened hands-on science museum.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.