A massive Nazi holiday camp built by Hitler between 1936-1939 to be a relaxing, seaside retreat for Nazis has now opened as a luxury resort on one of Germany's finest beaches. /CFP Photo

Prora, which is located on the north eastern German Baltic coast on Rüegen Island, was originally commissioned by Hitler as a massive, 4.5 kilometers long beach holiday resort complex for German people. /CFP Photo

The original plans called for a festival hall and rooms located in eight, 450 meter-long blocks to accommodate 20,000 guests, with each room facing the sea. However, construction halted in 1939 when World War II broke out. The complex then housed Soviet soldiers during the war. /CFP Photo

Decades later, the German government, which assumed administration after 1989, sold the five existing blocks to private investors. /CFP Photo

Fast forward to 2017, Prora is now a massive real estate development: rehabilitated to include a five-star hotel, holiday apartments, a museum and a youth hostel, with 95% of the apartments have already been sold. /CFP Photo