The first declared National Monument in the United States.

The second-deepest known cave on Earth, hidden in an extremely remote mountain region.

These strikingly barren, rolling red hills were caused by bad farming practices.

The farthest you can be in the contiguous U.S. from a McDonald's location.

A monument to the center of the North American continent may be off by a few miles.

The remnants of an early American attempt at missile defense.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

Small, privately owned island divided between Michigan and Ohio with abandoned vacation homes and a derelict lighthouse.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

Abandoned Air Force base that has fallen into disrepair.

Exact replica of the ancient monument, but much, much lighter.

Two insane asylum bodies embalmed by an amateur.

This rural community has attracted both scientists and techno-refugees due to its federally-mandated lack of technology.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

The antique barns in Cameron are not painted with your grandfather's Mail Pouch Tobacco murals.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

Railroad came. People came. Railroad left. Town died.

Enormous lake at the bottom of a unique cave system.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

North America's oldest authentic African Village.

This decommissioned DC-3 now forever points into the oncoming wind.

Roadside collection of 65,000 signs.