"Many prisons built in the 1800s and early 1900s were massive foreboding structures which offered only the most basic needs to the inmates they housed. The antiquated concept of reform was designed to break the spirits and force conformity. The methods used were viewed even then as barbaric by some. Many who study paranormal activity believe these prisons, each with its own history of immense pain and suffering, attract spirits who are caught between worlds. They believe some of these spirits were too evil to move on, others have old scores to settle and some wander the prison's cell blocks looking for the way out." http://crime.about.com/od/prison/a/hauntedprisons.htm?nl=1