Berlin is a city where the extremes and tragedies of the 20th century were experienced at first hand. Past events continue to have a dramatic physical presence in the fabric of urban life today. The city functions as a symbol of World War II and the Cold War, as the prism of a torn nation, which has had the chance to reconstitute itself fundamentally in the past two decades. With the fall of Communism, ideological division ceased to dominate public life. The resulting void was partly filled by a quest for authenticity in commemorating and relating to German history, especially the heritage of WWII and the years of division. A vibrant public debate has featured fierce contests between competing narratives of recollection and underlying collective identities, central motifs including trauma, guilt, and loss.