Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

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.

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.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district

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

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

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

This remote island in Iowa was abandoned after being devastated by flood.

If astronomy had a ghost, it would look like this observatory.

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

See just what life was like in a 19th-century prospecting town.

This former luxury resort in Kaua'i is now an abandoned relic.

The beauty of urban decay, hiding some dark secrets.

Enchanting gardens surround a derelict mansion, all hidden in plain sight behind a stone wall.

Abandoned silver mine strewn with wrecked and twisted structures.

Four-story concrete hotel never opened to customers.

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

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

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

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.