When this test site was abandoned, they didn't even bother to take the rocket with them.

Buffalo's abandoned concrete grain elevators are getting a second life.

An abandoned asylum where patients have been forgotten but their possessions remain.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

This Central New York ghost town was once a prosperous railroad community.

An abandoned castle owned and ignored by Masons carries a cursed history.

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

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.

Created by four famous men (Henry Hobson Richardson, Frederick Law Olmsted, Calvert Vaux and Thomas Story Kirkbride), the beautifully designed Buffalo State Asylum was resurrected as a hotel and art center...but still boasts a ghost story or two!

Toxic waste disaster that founded the Superfund program.

A 12th-century fortress containing some of Berlin's oldest buildings.

This abandoned hospital has a long history, having housed both German and Soviet soldiers in the course of its life.

A long abandoned hospital building on the outskirts of NYC.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

An abandoned asylum once on the cutting edge of lobotomies may be reborn as a Christian college.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.