"Iconic Stone Stairs Near Georgetown University Run up and down 10 times, and you'll feel the burn! This is a favorite among Georgetown University athletes and the student body, especially on Halloween. Made famous by the 1973 horror classic written by Georgetown alum William Peter Blatty (class of 1950), the dark, narrow, 75 steps are part of the film's climax (in which a Catholic priest rids himself of the devil by hurling himself out of a window and down the steeply sloped stairs to his death). As you make your way to the top, head to 3600 Prospect St. NW to see the the brick house where the film's exorcism occurred."