The large green area bounded by the Aurelian walls

 (from the Porta del Popolo to the Porta Pinciana) and the Parioli, is historically interested by the presence of important suburban "villas". Today, this area is called "Park of the Museums" owing to the concentration of historical buildings that house renowned art collections. 

The Casino, today called Galleria Borghese, surrounded from a park rich in fountains, minor buildings, statues and sculptural decorations representing themes in me with the natural setting. 

A the end of the viale dell'Uccelliera there are the Zoological Gardens. On the Viale delle Belle Ari is the monumental facade of the National Gallery of Modem Art.
Finally, in the Park is the Villa Giulia, that since 1899 has housed the Etruscan Museum.

The villa is one of the most important mannerist architectures and, annexed to the main building, it has a system of yards at the center of which is a spectacular nymphaeum.