It is a restored 12th century chapel, formerly with a single nave, it is completed by 2 side chapels. The high altar is made of white marble, topped by the statue of St John. A gabled bell tower makes up its façade. The entrance door is a pointed arch with simple ribs dating from the 15th century. The apse is circular with two semicircular crosses which seem to date from the 13th century. An opening from the end of the 11th century, discovered behind an altarpiece, decorates the apse. In...