Al Capone Once Walked These Halls
Total Spook Factor: Built in the early 1800s, Eastern State Penitentiary is an enormous ghost hunter's dream, with bellowing halls, scaly walls and shadowy cellblocks that once were home to notorious murderers and criminals, like Morris Bolber (who was responsible for the arsenic killings of more than 30 people) and the infamous mobster Al Capone. The crazy-all creepitude ain't for the Scooby Snack set, for sure.
Take a Tour: Daytime historic tours are offered seven days a week, year-round, with popular twilight tours given during the summer. For nighttime scares, dare to enter "Terror Behind the Walls," when the penitentiary becomes a massive haunted house from late September through Halloween.
Plan a Paranormal Investigation: If you want to conduct your own private paranormal investigation of Eastern State, you can book your ghost hunt in advance. Your group must have 5-15 people, and you must book at least four hours for your investigation ($25 per person per hour), between 6PM-1AM. Of course, you also have to bring your own equipment. Eastern State's staff will help you navigate the prison, but won't supply the ghostful gadgetry. Private nighttime investigations are not allowed during the weeks of "Terror Behind the Walls."