Interior view of St. Peter's Basilica in the Vatican, from Vedute di Roma (Roman Views). Artist: Giovanni Battista Piranesi (Italian, Mogliano Veneto 1720-1778 Rome). Dimensions: Sheet: 20 11/16 x 28 9/16 in. (52.5 x 72.5 cm) Plate: 16 1/8 x 23 11/16