Santiago de Compostela Cathedral — According to Catholic tradition, Apostle James, son of Zebedee, spread Christianity in Spain, then after he was beheaded ihis remains were later transferred to Galicia in a stone boat, to the place where this cathedral now stands.
Photo Credit: By Yearofthedragon - Own work, CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=459224