The remains of the Castle can be visited
Cultural Events
Frankenstein Castle

A spur castle, Frankenstein Castle Ruin, is on an outcrop of the Langenberg in Mühltal-Nieder-Beerbach. It is the northernmost of a series of historical structures on the western edge of the Odenwald, offering views over the Rhine plain. The ruin also gained renown through its possible connection to Mary Shelley's novel "Frankenstein or The Modern Prometheus."
History+
The first documented mention of Frankenstein Castle occurred in 1252, although the wording of the document suggests that the complex already existed at that time. The exact construction period is uncertain but is estimated by most historians to be around 1240. The noble family of Frankenstein emerged from the marriage of Konrad II. Reiz von Breuberg and Elisabeth von Weiterstadt. In the 14th century, the family split, leading to a division of the castle and constant legal disputes. Around 1400, the castle was expanded and modernized, and in 1402, it became an imperial fief. The 16th century was marked by building activity, during which the castle reached its current size.
Source: Wikipedia · Licence: CC BY-SA 4.0 · Image: http://www.wehrbauten.de/thread.php?threadid=971
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: 49.7931, 8.6682