The archaeological complex located in the area of Posillipo is made up of a Roman villa developed spectacularly from the hill Trentaremi to Gaiola of this vast building is preserved in a particular theater, whose chamber, facing south, has un'ima auditorium divided into three wedges and an average auditorium added later, both accessible by stairs side inserted in turrets, over the orchestra; The occupied area of the scene is also a spa perpendicular to the auditorium, around which was a garden enclosed by a curved wall. On top of this there is another rectangular garden surrounded by a porticus triplex formed even near the scene of the odeion. This shows belonging to the second building at the villa, it was actually a space devoted to hearings of poetry, rhetoric or concerts, consisting of six steps and a square-shaped auditorium, as well as a large apsidal hall, at the center of the media cavea, with a podium bearing a statue Del residential neighborhood, with reception rooms, you can still see some of the thermal environments, in particular the caldarium. The architectural complex dating back to the first century BC with subsequent building work carried out in the imperial age, belonged to the Roman knight Publius Vedius Pollio (Pollio Publio Vedio). discussed and rich character of the libertine origin, economic adviser of Augustus in the reorganization of the province of Asia, which he left at his death to the Emperor all its properties, including precisely the villa on the Bay of Naples which he called Pausylipon (dall'etimo greek "that freedom from worries"). From Posillipo gallery, the so-called Grotto of Sejanus Lucius Aelius Sejanus because attributed to, general friend of Tiberius, dug into the tuff for a length of approx. 800 m across the promontory connecting the side of the Neapolitan coast with that of Coroglio to the Campi Flegrei.