Prison: Ohio State Reformatory

Locations: Mansfield, Ohio, USA Built: 1886 Operation Time: 1896 – 1990 Type: Reformatory Security: Medium Status: Open as tourist location History The Ohio State Reformatory (also known as OSR and Mansfield Reformatory) is located in Mansfield, Ohio and is noted as one of the most haunted places in the world. Work on the prison began on November 4th, 1886, when…