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Faithful gather in St. Peter's Square at the Vatican Sunday, March 24, 2013. Pope Francis celebrated his first Palm Sunday Mass in St. Peter's Square, encouraging people to be humble and young at heart, as tens of thousands joyfully waved olive branches and palm fronds. The square overflowed with some 250,000 pilgrims, tourists and Romans eager to join the new pope at the start of solemn Holy Week ceremonies, which lead up to Easter, Christianity's most important day.
Pope Francis leans over to kiss a baby after celebrating his first Palm Sunday Mass in St. Peter's Square. Penitents in white robes and pointed white hats wait outside a church before a procession in Seville, Spain. In Port-au-Prince, Haiti, a woman grasps palm fronds and a rosary while praying during an outdoor Mass at an earthquake-damaged cathedral.

Here are some of the images from Holy Week:

Penitents from La Paz brotherhood wait outside the church before taking part in a procession in Seville, Spain, Sunday, March 24, 2013. Hundreds of
Penitents from La Paz brotherhood wait outside the church before taking part in a procession in Seville, Spain, Sunday, March 24, 2013. Hundreds of processions take place throughout Spain during the Christian Easter Holy Week. ((AP Photo/Emilio Morenatti))


A penitent from the La Paz brotherhood is seen inside a car as he arrives to the church to take part in a procession in Seville, Spain, Sunday, March 24,
A penitent from the La Paz brotherhood is seen inside a car as he arrives to the church to take part in a procession in Seville, Spain, Sunday, March 24, 2013. Hundreds of processions take place throughout Spain during the Easter Holy Week. ((AP Photo/Emilio Morenatti))

Hooded penitents from the La Paz brotherhood walk to the church to take part in a procession in Seville, Spain, Sunday, March 24, 2013. Hundreds of
Hooded penitents from the La Paz brotherhood walk to the church to take part in a procession in Seville, Spain, Sunday, March 24, 2013. Hundreds of processions take place throughout Spain during the Easter Holy Week. ((AP Photo/Emilio Morenatti))

Catholic priests carry palm fronds at the Church of the Holy Sepulchre, traditionally believed by many to be the site of the crucifixion and burial of
Catholic priests carry palm fronds at the Church of the Holy Sepulchre, traditionally believed by many to be the site of the crucifixion and burial of Jesus Christ, in Jerusalem's Old city, Sunday, March 24, 2013. Palm Sunday marks for Christians, Jesus Christ's entrance into Jerusalem, when his followers laid palm branches in his path, prior to his crucifixion. ((AP Photo/Sebastian Scheiner))

A woman holds palm fronds and a rosary while praying during an outdoor Palm Sunday Mass at an earthquake-damaged cathedral in Port-au-Prince, Haiti,
A woman holds palm fronds and a rosary while praying during an outdoor Palm Sunday Mass at an earthquake-damaged cathedral in Port-au-Prince, Haiti, Sunday, March 24, 2013. Christians from around the world commemorate Palm Sunday as they celebrate Jesus Christ's triumphant entry into the holy city of Jerusalem 2,000 years ago. ((AP Photo/Dieu Nalio Chery))