Photo taken by Roger Cremers, a photographer based in the Netherlands, shows "Preserving Memory: Visitors at the Memorial and Museum Auschwitz-Birkenau, Poland, April 30-May 4". The results of the 52nd annual World Press Photo Contest (WPP) were announced in Amsterdam, the Netherlands, Feb. 13, 2009. Roger Cremers' image won the 1st prize of Arts And Entertainment Stories category.[Roger Cremers/Xinhua/WPP]