A former copper mine which became a truly unsuccessful prison.

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

One philanthropist's extensive collection of knick-knacks and curiosities is now a public museum of oddity.

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

This giant disembodied horse head seems to balance impossibly on its nose.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Venture into the past with an unlisted exhibit hall featuring extinct birds.

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

This strange, big-tailed beast became a Pennsylvania town's unofficial mascot.

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

Since 1929, millions have sought miraculous healing and solace from this unknown yet deeply revered Irish priest.

The largest body of water in Massachusetts annihilated four small towns just to slake Boston's thirst.

The oldest headstone in Connecticut.

Sand dunes from a glacial lake are preserved in this woodland park.

A replica of fossils believed to be the first scientifically-described dinosaur bones found in North America.

The final resting place of a wealthy landowner who helped create the largest public park in Western Massachusetts.

This giant Massachusetts sycamore is said to hold the dubious distinction of being the "widest tree East of the Mississippi!"

This locally-famous crevasse in New York State is icy all year round.

One of the oldest cemeteries in Vermont is the final resting place of soldiers, politicians, and a famous author.

Locals purchased this abandoned quarry in order to make sure it continues to be overgrown.

A mysterious collection of stones stand outside a small New England town.

Over fifty whirling pools left by the glacial age.

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