Pope Benedict XVI arrives to give a mass with Archbishop of Berlin Rainer Maria Woelki (C) on September 22, 2011 at the Olympia stadion stadium in Berlin, at the start of his first state visit to his native Germany. The 84-year old pope, German born Joseph Ratzinger, has a packed program, with 18 sermons and speeches planned for his four-day trip to Berlin, Erfurt in the ex-German Democratic Republic and Freiburg. AFP PHOTO / ALBERTO PIZZOLI