Mudejar tower of Alagón Monument · Alagón, Ribera Alta del Ebro, Zaragoza Image of Alagón, not of the place itself. The Mudéjar tower of the church of San Pedro in Alagón reuses the old minaret of the town's mosque, taken by Alfonso I in 1119; it is one of the examples of Aragonese Mudéjar architecture declared a World Heritage Site by UNESCO. Photo: Vasyatka1 (CC BY-SA 4.0) What to see and do in Alagón