Near the beach is this well-preserved amphitheatre, where gladiators hacked away at each other, or wild animals. In its arena are the remains of 6th- and 12th-century churches built to commemorate the martyrdom of the Christian bishop Fructuosus and two deacons, believed to have been burnt alive here in AD 259. Much of the amphitheatre was picked to bits, the stone used to build the port, so what you see now is a partial reconstruction.
