Haunted happenings at Frankenstein's castle Pictures Haunted happenings at Frankenstein's castle A person dressed as Frankenstein's monster tries to scare visitors at Frankenstein castle in Darmstadt, Germany, Oct. 19, 2013. Grotesque monsters, howling werewolves, long-nosed witches and Frankenstein's monsters feature in the annual weekend event at the castle, which is now one of Europe's most popular Halloween events. The festival started in 1978 after American troops stationed at Rhein Mein Air Base decided to use the famous castle as a venue for Hallowen celebrations. All photos taken in Darmstadt, Germany, Oct. 19, 2013 Credit: Thomas Lohnes/Getty Images