Exterior of Chapel of St. Zeno
Exterior of the Chapel of St. Zeno, with 1st-century sculpture cornice, 3rd-century marble urn, and 9th-century mosaic. The mosaic features a double row of busts, with the Virgin Mary and Child, Prassede and Pudenziana in the inner row and Christ and the Apostles in the outer row. At the corners are four saints.
Credit: Holly Hayes