The sanctuary of Minerva at Portonaccio is an archaeological site on the western side of the plateau on which the ancient Etruscan city of Veii, north of Rome, Italy, was located. The site takes its name from the locality within the village of Isola Farnese, part of Municipio XX, city of Rome.
It is important for the elaborate polychrome terracotta decoration that was found here with a quantity and quality unparalleled in Etruscan art, much of which can be seen in the National Etruscan Museum, in the Villa Giulia, Rome.
Wikipedia https://en.wikipedia.org/wiki/Portonaccio_(Veio)
Address 00123, Italy
Coordinates 42°1'16.935" N 12°23'25.983" E