Extension new construction site at the museum building ensemble Stralsund Museum and Maritime Museum on the street Bielkenhagen in the district Andershof in the Hanseatic City of Stralsund in the state Mecklenburg - Western Pomerania, Germany. The cultural-historical museum of the Hanseatic city of Stralsund is located in parts of the former medieval St. Catherine's Monastery and the adjacent former Ernst Moritz Arndt School in the core area of a??a??the city area, which has been recognized by UNESCO as a World Heritage Site