Once America’s most beautiful army base, this abandoned military fort on the coast of Monterey Bay has been left to the elements.

This small monument to the great inventor contains a time capsule and a Wi-Fi hotspot.

A 19th-century cabin built into a hollowed-out Sequoia tree.

One of America's oldest Antarctic research bases is abandoned but still just waiting for visiting explorers.

This abandoned Antarctic research station is a Soviet ghost frozen in time.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

The largest permanent Monopoly board makes one of the longest games even bigger.

A picture-perfect town, perfect for blowing up.

For 60 years, skiers have calmed their nerves with cocktails hidden along these slopes.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

A former Oz-themed attraction that has fallen into disrepair, but still holds some of the original magic.

The final remnant of the Arkansas zinc industry is this historically protected ghost town.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

Once known as the Illinois Asylum for the Incurable Insane.

The ghostly remains of an accidental sea.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

This abandoned prison castle has become an imposing gallery of graffiti art.

A pilgrimage site where people ask Saint Dymphna to watch over those who are not of sound mind.

This abandoned Antarctic base sits nearly unchanged since it was forsaken in the 1950s, just waiting for you to visit.

An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

Secret US military film studio in the Hollywood Hills.

America's only nuclear missile silo open to the public.

While exploring the desert, you can stop by the home of a fictional heretic from a parallel universe.

The only theatre in the world constructed specifically for sound movement.