The Roman amphitheater, built around the 2nd century AD, was one of the largest arenas of its kind. The corridor where gladiators and beasts entered the ring is still intact, and some of the seats still bear the occupants' names.

If the Archaeological Park is closed, go from Viale Teracati up Viale G. Rizzo to the belvedere overlooking the ruins, which are floodlit at night.