Ruins of a historic medical facility sits eerily by the water.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

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

Home of Philip Johnson, one of the 20th century's most influential architects.

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

A former copper mine which became a truly unsuccessful prison.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

137 graves holding New England's earliest residents.

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

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

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

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

In this cemetery stands the country's first public crematorium.

Originally a cemetery, this city park remains speckled with a handful of scattered gravestones.

This historic furnace was once used to produce cannonballs during the Civil War.

The Pennsylvania shopping center was once the setting for the 1978 film, "Dawn of the Dead."

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

For decades, it has disappeared and reappeared as water levels rise and fall.

The residents of this ominous-sounding street in Pennsylvania liked its name so much they fought to keep it.

The site of the little-known Pennsylvania battle that sparked the Seven Years' War.

The final resting place of two members of the infamous Doan gang, notorious outlaws and Revolutionary War Loyalists.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.