Overview: The GHI team is thrilled to be joined by Destination Truth host Josh Gates for their visit to the Castle Frankenstein in Germany. En route, Donna explains the castle was constructed 12 centuries earlier and fell into disuse in the 19th century. Mary Shelley's famous horror novel, Frankenstein, was based on the actual exploits of Konrad Dipple Von Frankenstein, an alchemist who performed experiments on dead bodies that he exhumed.