One of the bullets used in the assassination attempt of Holy Pope John Paul II on May 13, 1981, is kept in the crown of the statue of the Virgin Mary of Fatima on display at Parque Tejo in Lisbon where Pope Francis is presiding over a mass celebrating the 37th World Youth Day, Sunday, Aug. 6, 2023. An estimated 1.5 million young people filled the parque on Saturday for Pope Francis' World Youth Day vigil, braving scorching heat to secure a spot for the evening prayer and to camp out overnight for his final farewell Mass on Sunday morning. (AP Photo/Gregorio Borgia)