Vatican Swiss guards close the main door of the papal residence in Castel Gandolfo, south of Rome,Thursday, Feb. 28, 2013. Benedict XVI greeted the faithful for the last time as pope on Thursday, telling tearful well-wishers that he is beginning the final stage of his life as "simply a pilgrim," hours before he becomes the first pontiff in 600 years to resign. (AP Photo/Oded Balilty), APTOPIX