Fulton County Jail - Credit: Wikimedia Commons
The Fulton County Jail, originally the Tryon County Jail, is a historic jail complex located at the corner of Perry and Montgomery Street in Johnstown, Fulton County, New York. The original section was built in 1772-1773 and was placed on the village's highest ground to give a defensive advantage in case of an attack by Native Americans or a war. At the time, it was thought to be one of the strongest defensive positions in colonial America, due to its placement and the thick wall, which would deflect everything but the very strongest artillery.Historic signs on site Read more on Wikipedia
Source: en.wikipedia.org