Prison
Untermaßfeld Castle

Untermaßfeld Castle, originally a fortress, is a historic building in Thuringia, currently used as a correctional facility.
History+
The first documented mention of Maßfeld Castle occurred in the first half of the 14th century. A source from 1350 indicates that the Truchsess brothers made a fortification available to the Bishop of Würzburg. In the 15th century, the complex served as a dower house for the Henneberg Countess Katharina. After the death of Count Georg Ernst von Henneberg, the inheritance was divided between the Albertine and Ernestine lines (Saxe-Meiningen). During the Thirty Years' War, the complex was destroyed in 1646, but later refortified before being abandoned as a fortress.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://commons.wikimedia.org/wiki/File:Untermassfeld_mit_Wasserschloss.jpg
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 50.5327, 10.4151