Built on a hill by the river Mavone;in the homonymous valley;surrounded by trees;the church of Saint John was probably founded in the XII century;along with the Benedictine monastery adjoining it;whose ruins bear evidence of its original big size.The façade;adjusted later when the belfry was added;is made of white local stone blocks;the portal;surmounted by a round window;is decorated with spirals and floral reliefs and has mullioned windows with two lights on the sides.It is one of the first examples of the typology characterized by a horizontal coping with hanging arches;which would have become typical in the Abruzzi and in other areas throughout the following years.The interior consists of a nave and two aisles with one apse;decorated with a fresco dated 1421 and representing the Redeemer between the Holy Mary and Saint John the Baptist.One part of the apse is raised and lies on the crypt;supported by cross-vaults and columns.;