This imposing 19th-century square is a favorite meeting place. But even if you don't come here to meet anybody, make sure to look around and view the marvellous buildings of the royal palace and the San Francesco di Paola Church, which was built to resemble Rome's famous Pantheon.
Wikipedia https://en.wikipedia.org/wiki/Piazza_del_Plebiscito
Address Piazza del Plebiscito, Napoli 80132, Italy
Coordinates 40°50'8.866" N 14°14'54.879" E