Of all the images associated with The Exorcist — spinning heads, split pea soup, crucifixes handled in unholy ways — it is the creepily steep stone staircase that might be the longest-lasting in memories. The 1973 horror blockbuster’s satanic steps — which prove to be the cause of death for several characters — are located in Washington’s Georgetown enclave by a house at 3600 Prospect Street, which was used for exterior shots of the possessed girl’s residence. Students at the neighborhood’s namesake university — which features heavily in the film — put on several screenings of the film every Halloween.
