The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Was there a small "backpack nuke" hidden in the attic? JFK apparently thought so.

More than 500 unique and specially designed cases collected by D.C.'s "Harmonica Case Man."

An abandoned cyanide mill is now a haunting magnet for graffiti and illegal parties.

Mine your own precious stones.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

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

A unique solar-powered pottery studio and gallery in the desert.

The Wonder Road aka Doobie Lane, a mile-long strip of dirt road filled with folk art.

This mother-daughter run curiosities shop is a beautifully odd mix of taxidermy and exotic plants.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

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

This famous Nevada gold mine, once a hotbed of Wild West shenanigans, is now open for tours.

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

Legends surround this jagged rock formation in the New Mexico desert.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

One of the American Southwest's most extensive collections of Navajo rock art.

These aggressively sustainable art homes look like something out of 1970's science fiction.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

This popular pilgrimage site offers a hole filled with holy healing dirt.