The church castle can be visited
ChurchKarlstadt - Stetten
Stetten Church Castle

The fortified church of Stetten around the parish church of St. Albanus is located in the Werntal, in the Stetten district of the district town of Karlstadt (Main-Spessart district, Lower Franconia).
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://www.wehrbauten.de/thread.php?threadid=1240
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Location: 49.9456, 9.8318