Crowds gather in God's Mercy sanctuary in Krakow on April 27, 2014, to watch on a screen the canonization ceremony of Polish-born Pope John Paul II. Thousands of faithful flocked to the sanctuary to watch live from the Vatican a mass presided by Pope Francis to confer sainthood on John Paul II and John XXIII -- two influential popes who helped shape 20th century history. AFP PHOTO / JANEK SKARZYNSKI