Catholic faithfuls buy palm leaves on Palm Sunday, in Tegucigalpa, on March 24, 2013. For Christians, Palm Sunday marks the beginning of Holy Week, and commemorates Christ's triumphant entry into Jerusalem on the back of a donkey, welcomed by crowds waving palm branches, before his arrest, trial, crucifixion and resurrection. It is traditionally marked by a procession and special mass. AFP PHOTO/Orlando SIERRA