Downtown of Rome

The most beautiful open-air museums in the world is the historical Downtown of Rome ! Walking in the historic centre of Rome it will be difficult to understand how it was possible to concentrate so much art and beauty in just one place.
Monuments, churches, palaces and squares of enormous historical and artistic value without interruption: so many that there is the risk of not seeing one. From the Trevi Fountain, to the Fountain of the four Rivers in Navona Square, continuing on by the Pantheon and Spanish Square.