Matthew S. Witkovsky, assistant curator of photographs. Against a background of tremendous social and political upheaval, photography scaled new heights in Austria, Czechoslovakia, Germany, Hungary, and Poland. Between the two world wars. Host Barbara Tempchin and Matthew Witkovsky, curator of Foto: Modernity in Central Europe, 1918-1945, discuss the landmark exhibition, which had its world premiere here at the National Gallery of Art in June 2007 landmark exhibition.