Overview: Rome. A capital of two, three million inhabitants with all its palaces, its churches, its monuments, but what is underneath all this? What can you discover by going under churches, palaces but also under very famous places such as Piazza Navona, Piazza di Spagna or even the Trevi fountain? Well, there lies a forgotten world made up of archaeological sites, ancient tombs, surprising sites. It will be a real journey to discover the secrets of Rome.