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

Once the largest public hospital for the mentally ill was also surrounded by controversy.

This mysterious artificial cave has long puzzled New Englanders.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

Surrounded by lonely toys, this Massachusetts gravestone marks the final resting place of six children who were murdered by poverty.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

A spooky and decrepit mental health facility is slowly being replaced with newer digs.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

Burial ground for revolutionary veterans attracts tall tales, ghost hunters, not enough historians and preservationists.

On top of Gibbet Hill lie the ruins of a lavish turn-of-the-century estate that never quite came to be.

The haunting history of a little girl lost.

This massive boulder is inscribed with the story of a sensational hostage negotiation dating back to Colonial times.

This railroad tunnel was once the longest in Massachusetts.

This unassuming Massachusetts residence was built with a trap door to hide escapees on the Underground Railroad.