World Heritage sites in Potsdam and Berlin09/07/2015September 7, 2015Claudia Zöbisch and Joel Ku Caamal from Mexico are the winners of our World Heritage Site photo competition. Their prize: a trip to Potsdam and Berlin.https://p.dw.com/p/1GQNvClaudia Zöbisch and Joel Ku Caamal at Sanssouci PalaceAdvertisement