- area archeologica di san lorenzo maggiore
Below the Basilica of San Lorenzo Maggiore are the remains of public buildings of the Graeco-Roman city, the centre of which corresponds to the present-day Piazza San Gaetano.
Apart from the 6th-century AD early-Christian Church, traces of pre-existent buildings of the 4th century BC have been found, including the "macellum", the ancient food market.
Various other buildings, including the treasury building, scattered along a considerably long stretch of road, bear witness to the complex stratification which has come about with numerous changes to the urban plan over the centuries.