Atlas Obscura on Instagram: "This is the Castle Frankenstein, located in Mühltal, Germany, the birthplace of an eccentric alchemist—and possible inspiration for the fictional reanimator of monsters. Johann Konrad Dippel, the eccentric alchemist in question, was rumored to create potions, perform electrical therapies, and even partake in gruesome experiments involving stolen body parts from the graveyard. He was born here, in Castle Frankenstein, in 1673, and while it’s disputed whether or…