The Ara Pacis (the Ara Pacis Augustae) is altar made of marble in Rome; it is dedicated to the Roman goddess of peace, Pax. The construction was commissioned by the Roman Senate in 13 BCE in to honor the return of first Roman emperor, Augustus. Before homecoming Augustus spent about three years in the provinces of Gaul. The symbolic structure reflects the importance and the belief of peace of Rome and the achievement of Roman Empire. The Rome Senate hold a ritual at the Ara Pacis to celebrate the Augustus's victory of the war.
The entire construction is composed by an altar at the center place surrounded by walls and a stairwell connected to the entrance. The walls and the central altar are sculpted in marble.
The walls and the altar are carved with images depicting Augustus's greatness and the ritual performed at it, and some walls have images of royal family members and nobles.