Warsaw Ghetto exhibition . Frankfurt , Germany ; Grim - faced, this young boy and girl walk from the " Warsaw Ghetto " exhibition , which opened here this week when pictures of wartime atrocities by the Nazis went on show to the public . The opening date of the exhibition , which is to tour every major German city , was chosen as 20 November , an annual German day of prayer and penance . Visitors are give brochures written by prominent ex - captives , aimed at preventing the lesson of the exhibition being forgotten at the hall door . 22 November 1963