Castle of Santiago (Sanlúcar) Monument · Sanlúcar de Barrameda, Costa Noroeste, Cádiz Fortress built by the Guzmán family in the 15th century in the Bajo de Guía quarter; the Catholic Monarchs visited it in 1477. Like the rest of Spain's castles, it has held generic protection since the Decree of 22 April 1949. s. XV Photo: José Manuel Lira Vidal (Public domain) What to see and do in Sanlúcar de Barrameda