Pope Francis kicked off the Christian Holy Week leading up to Easter by celebrating Palm Sunday Mass with pilgrims in Saint Peter's Square Sunday.
Pope Francis leads the Palm Sunday Mass at Saint Peter's Square at the Vatican.
Members of the clergy holds palm branches at the start of the Palm Sunday mass led by Pope Francis at Saint Peter's Square at the Vatican.
Prefect of the Papal Household Monsignor Georg Gaenswein, right, holds a palm leaf as he walks in procession at the beginning of a Palm Sunday Mass celebrated by Pope Francis, in St. Peter's Square, at the Vatican.
Christian clergymen carry palm fronds during the Palm Sunday procession in the Church of the Holy Sepulcher, traditionally believed by many to be the site of the crucifixion, in Jerusalem's Old City.