The seamy, underground secrets of Portland's criminal past.

The abandoned Japanese amusement park once loomed as a dystopian Disneyland.

An enormous, 30-story-deep hole in the middle of Guatemala City.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Ancient human, animal, and geometric figures drawn in the earth.

Population: 1.

Jail from the 19th century that was built by inmates.

On the side of a remote mountain, a stone face bearing an inscription of mysterious origin.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

A tree bears footwear on the loneliest road in America.

An architect's childhood fantasy treehouse made real.

One of the smallest towns in the United States.

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

A picture-perfect town, perfect for blowing up.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

Dig for your own trilobites in this goldmine of invertebrates.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

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

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

Home on the Hillside, and home of the first breakfast cereal.

The largest underground church in Europe.