The Bahlsen company in Hannover has been producing the famous Leibniz biscuit for over 120 years. Named after the renowned polymath Gottfried Wilhelm Leibniz, this extraordinary biscuit was even awarded a gold medal at the World's Fair in Chicago. So revered is it that in 2013 the brass emblem of the biscuit was stolen from the company's headquarters by a thief styling himself on the Cookie Monster. It was returned shortly afterwards.