Despite declining religious belief in Spain, Seville's Holy Week processions continue to draw crowds moved by music, tradition, and powerful emotion.

Even as religious belief declines in Spain, the processions at Seville's Semana Santa — the Holy Week lead-up to Easter — draw crowds moved by music, tradition and powerful emotion. <img alt="Penitents from the La Paz brotherhood parade in the Palm Sunday procession in Seville, Spain, on March 29. Many of the participants in Semana Santa processions wear traditional costumes that include pointy hoods, which, especially for Americans, may be reminiscent of the Ku Klux Klan. But this Catholic garb...