Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

The remnants of a 19th-century ironmaking complex hidden in the woods of Connecticut.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

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

America's oldest archaeological site or a muddled case of wishful thinking.

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

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

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

Overgrown ruins of a turn of the century island fort that sees very few visitors.

This ambitious father and son team reigned supreme over the North End, and witches, for many years.

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

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

The kind of mixed-up place that drives archaeologists crazy.

A few stone foundations and an old graveyard are all that is left of this once thriving settlement in the wilds of Connecticut.

A crumbling stone stable and carriage house are all that remain of a manse that was once filled with Egyptian artifacts.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

A strange mark in the stone fence of a cemetery fabled to have been made by the Devil himself.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Mass Grave of 48 colonists killed in a raid by Native Americans and the French in 1704.