WARSAW, POLAND, APRIL 14, 2013:
Professor Wladyslaw Bartoszewski, a former Polish foreign ministery, former Auschwitz concentration camp prisoner and an honorary citizen of Israel, walks through the main hall of the Museum of History of Polish Jews, designed by Finish architects Rainer Mahlamaeki and Ilmari Lahdelma and built on the site of the Warsaw Ghetto, which opened in April 2013.