A hillbilly theme park that proved so unpopular the land wouldn't even sell on eBay after it closed.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

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

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

The angel of death appears to weep black tears at this grave marker.

The site of the Wellington avalanche, one of the America's worst railroad disasters.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Protecting the future of some of the rarest and most misunderstood mammals of North America.

The loneliest island in New York.

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

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

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

This haunting tombstone comes complete with a heartbreaking story of love and loss.

A church of bones, decorated with 40,000 human skeletons.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

The Voodoo Superstore of the world.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

A formerly abandoned mental institute, now back in business.

Fantastic collection celebrating the final send-off.