We have a brand new exclusive clip from the upcoming Ghost Adventures episode entitled Eastern State Penitentiary, which airs on Friday, July 10 at 9 PM ET on the Travel Channel. Click below for our exclusive clip, which shows the exploration of a haunted prison.

The Ghost Adventures crew investigates Eastern State Penitentiary in Philadelphia, Pennsylvania. It's one of the oldest standing prisons in the country. The inmates may have left a long time ago, but angry spirits continue to roam the cell blocks and corridors.