St. Catherine Chapel
Built by a donor named Anna, the Chapel of St. Catherine dates from the 11th century. It has a Greek-cross-shaped nave, with a dome over the center and barrel-vaulted cross arms. The narthex has nine floor tombs and two burial niches. The frescoes depict: a Deesis (in the apse); Doctors of the Church: Gregory, Basil the Great and John Chrysostom; St. George, St. Theodore, and St. Catherine.