The fearsome qualities of the Frankenstein Castle actually extend beyond Shelley’s 1818 novel. It is certainly up for debate whether or not our pretenses surrounding the castle have simply changed after reading the spooky story that is so deeply engrained in our cultural mythos, but either way this place is bound to give anyone the creeps. According to lore, the ghost of Johann Konrad Dippel lurks on the castle grounds, particularly around Christmas and New Years. Ghost hunters and other paranormal experts have yet to find any concrete evidence to explain this anomaly.
Burg Frankenstein, 64367 Mühltal, +06 151 501 501
Source : https://theculturetrip.com/europe/germany/articles/6-most-haunted-places-in-germany/