Since it was an important member of the Hanseatic League, the city's official name still includes "Hansestadt" (Hanseatic city). Other German cities that do the same today are: Lübeck, Rostock, Wismar, Stralsund, Bremen, Greifswald and Demmin. The membership in this trade alliance has influenced the architecture of the city to a great extent. It has also left some marks in the region around the city. Strategic bombing in World War II devastated the city.