Pozzuoli, the main port of Rome in the early centuries of the empire, was famous among the ancients as Pusilla Roma (little Rome), since, despite its small size, it appeared as a grandiose city, teeming with people from all over the Mediterranean. Two amphitheaters, the thermal complex known as the Temple of Neptune, the Macellum (temple of Serapis), the stadium, are some of the monumental remains of the city that emerge imposingly in the modern urban texture.

In Pozzuoli it is possible to visit:

• The archaeological underground route of the Rione Terra, the heart of ancient Puteoli, where you walk down the ancient decumani and the cardi, via San Procolo, where shops and private spaces overlook, up to the city bakery.
• the cathedral reopened fifty years after the fire that destroyed it completely on the night between 16 and 17 May 1964. The site is home to the remains of the ancient temple of Augustus, built by the architect Cocceio Aucto, and the seventeenth-century Baroque-style cathedral built by Bishop Càrdenas.
• Theso called Flavian Amphitheater or major amphitheater, the fourth largest in the Roman world, wanted by Nero, hosted the grandiose games in honor of Tiridate King of Armenia and was the scene of the martyrdom of San Gennaro. The spectacle building is characterized by the extraordinary conservation of the underground , offering the visitor an exceptional view of what went behind the scenes of the gladiator games.
• The Temple of Serapis, the ancient Macellum of Puteoli. The grandiose architecture testifies the importance of Pozzuoli in the imperial age, but it is even a monument of the history of science, because it represents one of the key sites for the study of Phlegraean bradyseism.
• The Solfatara Volcano,the most interesting volcanic building in the Phlegraean Fields, where you can observe phenomena such as fumaroles, mofetes and mud volcanoes as well as some natural, geological, botanical and faunistic singularities.