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.
http://www.TerrorBehindtheWalls.com
From: Haunted Attraction Directory/ USA (All 50 States)/Maryland