The Iglesia de Santullano or San Julián de los Prados is a fine example of Asturian art. Built by Alfonso II "El Casto" during the first half of the 9C, it has a typical floor plan: a porch, three naves, a huge cross nave and, at the chevet, three barrel-vaulted chapels. Inside, the walls are covered with frescoes decorated with geometrical motifs based on the Roman style; the only Christian symbol used is the cross. Also noteworthy is the fine 13C Christ in Majesty in the central apse.