World's first "penitentiary," meant to be humane, drove men insane.

Take an otherworldly journey in a school dedicated to out-of-body experiences.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

Easter in Westminster may be the only time and place to behold Edgar Allen Poe made entirely of Marshmallow Peeps.

This free, take-a-book shop seems like a trick but isn't.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

This dig site outside D.C. is known for its exceptionally high density of baby dinosaur fossils and dinosaur eggs.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.