Though the headlines of today's newspapers suggest that the rift between Sunnis and Shi'is is eternal, the relationship between these two primary Islamic sects has not always been contentious. This is nowhere more evident than around the shrines of the 'Alids - revered by Sunnis and Shi'is alike, shrines to the Prophet's family have often served as unique spaces of intersectarian exchange and shared devotion. This book explores the relationship between Sunnis and Shi'is as expressed in the patronage and architecture of shrines, and links them meaningfully to the wider, pan-Islamic landscape of interconnected pilgrimage sites created from these acts of patronage.