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

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

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

This picturesque Victorian ghost town was once a thriving mill community.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

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

This little museum in the town where zombies were born celebrates the living dead.

Prehistoric animals decorate this popular outdoor park.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

San Diego's most historic and haunted home.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

The eccentric mansion of one the most popular horror authors of modern times.

New Orleans' famous cemetery, located on the site of a former race track.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

Less a museum than a bizarre fantasy world created by artists and engineers.

The "Seinfeld" diner.

The second oldest continuously operating bar in Louisiana.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

The magic's in the hole!

The world's longest known cave system.