Eastern State Penitentiary's TERROR BEHIND THE WALLS A MASSIVE Haunted House Inside A Real Prison! A lost world of crumbling cellblocks and empty guard towers stands behind the Eastern State Penitentiary's massive 30-foot high walls. This is the home of Terror Behind the Walls. Ranked the "No. 1 Haunted House in the United States" by America Online and called "perfect for Halloween" by the New York Times.
New for 2009: INFIRMARY! http://www.TerrorBehindtheWalls.com From: Haunted Attraction Directory/ USA (All 50 States)/Pennsylvania