Symbolising Roman elegance, this square is bordered by graciously fronted palaces, decorated with ancient statues and an obelisk, and adorned by a fountain. Sixtus V placed the Dioscuri from the Baths of Constantine here. Later, Pius VI erected an obelisk from the entrance to Augustus' mausoleum between the statues. Finally, Pius VII completed the decor with the addition of a handsome Ancient basin.