Article Photos: Pope to resign Feb. 28, says he's too infirm 14/15

FILE - This April 24, 2005 file photo shows thousands of people attending the installment Mass of Pope Benedict XVI in St. Peter's Square, at the Vatican. Pope Benedict XVI announced Monday, Feb. 11, 2013 that he would resign on Feb. 28 because he was simply too infirm to carry on — the first pontiff to do so in nearly 600 years. The decision sets the stage for a conclave to elect a new pope before the end of March. (AP Photo/Gregorio Borgia, files)