Zak Bagans and his crew of paranormal investigators set their sights on Moundsville penitentiary in West Virginia. Notorious for having been one of the most violent prisons in the country, it's believed that the men who died there still haunt the facility to this day. New episodes of Ghost Adventures air Fridays at 9pm ET only on Travel Channel! http://www.travelchannel.com/TV_Shows/Ghost_Adventures