Roman Catholic clergy and worshippers hold palm tree branches as they circle the aedicule during the Palm Sunday mass at the Church of the Holy Sepulchre in Jerusalem's old city on March 28, 2010. Palm Sunday marks the triumphant return of Jesus Christ to Jerusalem the week before his crucifixion, when a cheering crowd greeted him waving palm leaves. It also marks the start of the most solemn week in the Christian calendar. AFP PHOTO/ GALI TIBBON (Photo credit should read GALI TIBBON/ AFP/ Getty Images)
