In 1512, Friedrich I. had the beautiful castle Kilia built on the ruins of his first castle. The building burned down in 1938 and fell victim to a bomb raid a few years later. It is a shame, really, as the beautiful edifice was idyllically situated between the castle gardens and the firth. Only the western wing - the socalled Rantzau building - remained unharmed. You can find the collection of the Pomerania Society here today. The society collects and presents cultural possessions from Pomerania. The burnt out ruins were covered with a new building in 1960, where the authorities and the state library found a home. So visitors today face an interesting mixture of old and new architectural elements here.