This area was once known for being a lawless haven for rough-and-tumble sailors, earning the maritime-themed nickname "the black sea."

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

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

A cave dug by a man directed by ghosts to find pirate treasure.

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

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

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

An ancient glacial pothole waterfall in the heart of the Green Mountains.

The house where Rudyard Kipling wrote the Jungle Book is also the location of the first tennis court in Vermont.

This cavernous abandoned marble mine is popular with ice skaters in the winter.

Beautiful natural falls where Satan once ruined a pot of beans.

Even Henry David Thoreau found this glacial pothole irresistible.

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

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

More than 200 unconventional musical instruments that anyone can play.

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

A former copper mine which became a truly unsuccessful prison.

The macabre graffiti spectacle in a quarry in a Massachusetts forest reservation.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

This mysterious artificial cave has long puzzled New Englanders.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.