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

A defunct all-girls college which may be the resting place of H.P. Lovecraft's real-life Necronomicon.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

The sprawling, eccentric estate of Ames and Ames, a brilliant botanist, and a genius inventor and artist.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

The home of one of America's most wealthy industrialists is now a historic site that remembers a more decadent time in the country's history.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

Haunted Victorian house that inspired a legendary "Ghostbusters" court ruling.

Astonishing collection of helmets, scientific instruments, and medical models.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

A beautiful final resting place with some surprising residents.

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

The home, museum, and death site of Kodak's influential founder.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

An antique cemetery in New York, this land is home to any number of famed corpses.

A natural gas leak provides a flickering flame beneath a waterfall.