The haunting history of a little girl lost.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

The life of one of FDR's possible mistresses is preserved in her palatial Hudson Valley mansion.

This 19th-century sugarcane plantation is one of the most well-preserved estates of its kind, including its original quarters for enslaved laborers.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

Former villa and estate of James Deering developed to preserve native tropical forests.

More than a century after her death, Little Gracie Watson remains one of Savannah's most often-visited residents.

The Lowcountry color with the power to stop evil from entering a home.

4,000 monkeys used for medical testing on an island off of South Carolina.

A stack of stones steeped in Irish folklore, much like the hero they're connected to, hide in plain sight.

This small-town pizzeria won the Hollywood lottery.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

The "Seinfeld" diner.

The quaint little Vermont town played a quaint little Connecticut town in Tim Burton's "Beetlejuice."

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

This giant rock arrived at this quiet park thousands of years ago on the back of a massive glacier.

All that remains of the Whittall mansion are the ruins of the formal garden and its pergola, dedicated to the late Matthew J. Whittall by his widow.

This forlorn park is the result of a failed investment turned tax dodge.

This sprawling woodland estate was the brainchild of iconic American industrial designer Russel Wright.

100 massive sculptures in the Hudson River Valley.

A plaque on a rock dedicated to a famous, forgotten author, and put in an impossible place.

The real-life site of Ichabod Crane's infamous gourd attack.

Century-old shop, specializing in Occult products.