Statue of Christ on top of Mt. Naranco, Oviedo, Spain. The north of Spain was the only part of the Iberian peninsula not to have been conquered by the Moors - and consequently the only part to remain Christian at a time when Moorish Spain converted to Islam. This - and the fact that the mountainous area of Asturias lies on the fringe of Western Europe - left the area with an early Christian heritage that is the oldest in Spain.