The Castra Albana [ˈkastra alˈbaːna] was a permanent legionary fortress of the Legio II Parthica, founded by the Emperor Septimius Severus (193-211) on the modern site of Albano Laziale. Today, the ruins of the structures inside the castra, such as the so-called Baths of Caracalla and the Amphitheatre represent one of the largest collections of Roman archaeological remains in Latium, outside of Rome.