The amphitheatre was built by the masons of the Legion Albana in the first years of the III century outside the north east wall of the camp. This magnificent oval structure was in part dug out of the rocky bank and in part constructed using different building techniques. In the Middle Ages the site was exploited as a source of building materials and was also used as a Christian cemetery. In this period, two oratories were build; one was obtained in the third arch way and the other was completely carved in the rock on the left side of the cavea. All that is left of the original building is the first floor supported by 30-odd arches, part of the triumphal entrances and the whole cavea, which measures 113 m. along the main axis. The original structure is supposed to have been 22 m. high.
Address: Via Anfiteatro Romano