~Trajan's column by Giovanni Battista Piranesi, is a Roman triumphal column that commemorates Roman emperor Trajan's victory in the Dacian Wars. It is considered to be the masterpiece of Roman sculptural art. It was dedicated to Trajan by Hadrian
Pompeii, House of Venus in a Shell. On the rear wall of the peristyle are three large paintings on a blue background. The left hand painting is of the god Mars shown standing naked on a plinth while holding a lance & a shield.