Pozzuoli is a charming town in the province of Naples overlooking its beautiful gulf, in the Campi Flegrei area. Pozzuoli was very important during the Greek and Roman eras, and its history is still visible in every corner of the city. Most likely also known for the singular phenomenon of bradyseism, the volcanic activity which, based on the pressure exerted by underground gases, increases and decreases the height of the city above sea level.