The Ara Pacis, or Altar of Peace, is an ancient Roman monument dedicated to Pax, the Roman goddess of peace. Commissioned by the Senate in 13 BCE, it commemorates the return of Emperor Augustus to Rome after his campaigns in Hispania and Gaul. The altar is adorned with intricate reliefs that depict various scenes, including mythological figures and processions of Roman citizens. Constructed from white marble, the Ara Pacis is a significant example of Roman art and architecture. It symbolizes the peace and prosperity that Augustus sought to establish during his reign. Today, it is housed in a modern museum in Rome, attracting visitors from around the world.