Article Photos: Pope recalls 'joy,' difficulties in final audience 15/16

Pope Benedict XVI waves to pilgrims in St. Peter's Square at the Vatican, Wednesday, Feb. 27, 2013. Pope Benedict XVI greeted the Catholic masses in St. Peter's Square Wednesday for the last time before retiring, making several rounds of the square as crowds cheered wildly and stopping to kiss a half-dozen children brought up to him by his secretary. (AP Photo/Luca Bruno)