Eastern State Penitentiary's TERROR BEHIND THE WALLS
A MASSIVE Haunted House Inside A Real Prison! Eastern State Penitentiary's massive 30-foot high walls are the home of Terror Behind the Walls. Ranked as one of the 10 Best Haunted Houses in the United States by America Online and the Travel Channel.
http://www.TerrorBehindtheWalls.com
From: Haunted Attraction Directory/ USA (All 50 States)/Pennsylvania/Philadelphia