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

Lie in a hammock where George Washington stood.

Once America's longest-manned military fort, now an abandoned hulk.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

The loneliest island in New York.

The decaying ruins of Wales' first asylum for the mentally ill.

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

Historic psychiatric asylum and most-filmed location in the Great White North.

A long abandoned hospital building on the outskirts of NYC.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

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

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

Once a place of peaceful repose, this sanitarium now faces an uncertain future.

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

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

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

This foolish Victorian sea fort was converted to a deluxe hotel.

This 15th century pub is one of only two pubs in England situated on consecrated ground.