Abandoned silver mine strewn with wrecked and twisted structures.

A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

Four-story concrete hotel never opened to customers.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

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

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

A Beaux-Arts triumph set to become Ford's innovation campus

Instead of becoming a power plant, this abandoned complex became a massive letdown.

The remains of a World War II munitions factory still haunt the fields of this Twin Cities suburb.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

This amazingly preserved Gold Rush town is a historian's dream.

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

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Odd outsider art installations surround a Gold Rush-era ghost town.

One man's ambition created this psychedelic log home.

A forgotten Cold War relic hidden in the outskirts of a Wisconsin city.

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

Tucked away on an empty wooded lot in suburban Oklahoma City lie the remnants of an abandoned circus camp.

An abandoned relic of the city's failed experiment with below ground transit.

The remnants of an early American attempt at missile defense.

A key producer of charcoal iron in the early 1800s, the structure still stands today.