Pope Benedict XVI (R) shakes hands with Bishop of Mainz Karl Lehmann (L) while leaving the Erfurt protestant monastery of St. Augustin, on September 23, 2011, on the second day of the Pontiff's 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