Creepy prisons from history that'll give you the chills
Ohio State Reformatory, United States: For more than 100 years, this prison was considered one of the most violent.
Ohio State Reformatory, United States: First used as a juvenile reformatory in 1876, the building later became a prison.
Ohio State Reformatory, United States: The building is now a museum and a tourist attraction.
Castle of San Juan de Ulúa, Mexico: San Juan de Ulúa is the name of a small Mexican island that houses a complex of fortresses, including a prison.
Castle of San Juan de Ulúa, Mexico: The castle was designed by the Spaniard Hernán Cortés in 1519.
Castle of San Juan de Ulúa, Mexico: Prisoners were subjected to poor conditions and even torture.
Tuol Sleng, Cambodia: Initially a high school, the building was then transformed into the S-21 Trap.
Tuol Sleng, Cambodia: More than 17,000 people were arrested, tortured, and subjected to poor conditions in this security prison.
Tuol Sleng, Cambodia: The site is now known as the Tuol Sleng Genocide Museum.
Eastern State Penitentiary, United States: This building, located in Philadelphia, Pennsylvania, served as a prison between 1829 and 1971.