With its beautiful beaches and family-friendly attractions, Prora would be a great place to visit in any case. But it also has a dark secret as the site of a Nazi era holiday camp. The Colossus of Prora, or just Prora, was built by Nazi Germany between 1936 and 1939 as part of the Strength Through Joy (Kraft durch Freude or KdF) project. Although the buildings were planned as a holiday resort, construction was not completed and they were not used for this purpose. Today it houses a large youth hostel, a hotel and holiday apartments.