Castalla Castle sits on a hill overlooking the valley and the town is around. Although its origins are Moorish, the current structure dates from medieval times. James I of Aragon took the castle from the Moors after the conquest of Biar and integrated it into the Kingdom of Valencia, under the Treaty of Almizra (1244), was in Castalla border with Castile. For this reason, started rebuilding the castle and was consecrated the first church in the place where the present chapel of the Blood.
The Torre Grossa tower was added in the 16th century in order to keep a lookout for pirate raids from the Mediterranean Sea.
Saint-Georges de Boscherville Abbey is a former Benedictine abbey. It was founded in about 1113 by Guillaume de Tancarville on the site of an earlier establishment of secular canons and settled by monks from the Abbey of Saint-Evroul. The abbey church made of Caumont stone was erected from 1113 to 1140. The Norman builders aimed to have very well-lit naves and they did this by means of tall, large windows, initially made possible by a wooden ceiling, which prevented uplift, although this was replaced by a Gothic vault in the 13th century. The chapter room was built after the abbey church and dates from the last quarter of the 12th century.
The arrival of the Maurist monks in 1659, after the disasters of the Wars of Religion, helped to get the abbey back on a firmer spiritual, architectural and economic footing. They erected a large monastic building one wing of which fitted tightly around the chapter house (which was otherwise left as it was).