Pilgrims walk with crosses on the final leg of the Northern Cross pilgrimage to Holy Island, in Berwick Upon Tweed, England, on Friday. The pilgrims walk around 100 miles through Northumberland and the Scottish Borders during Holy Week. Image via Scott Heppell/AP.

Penitents from the Cristo de la Buena Muerte (or "Christ of the Good Death") brotherhood take part in a procession in Zamora, Spain, in the early hours on Tuesday. Hundreds of processions take place throughout Spain during Holy Week before Easter. Image via Andres Kudacki/AP.