Once a city has won world heritage status for a building it has a duty to preserve it – which in the case of Wismar means the entire old town. Since 2002 some 1,750 historical buildings have been listed. How does Wismar manage the up-keep?<br /><br />More reports: http://www.dw.com/en/discover-germany-the-travel-guide-2015-06-27/e-18524271-9798
