Chiesa di San Carlo alle Quattro Fontane

Roma Capitale records that Borromini worked on it from 1638 to 1642, took it up again later, and died in 1667 with the front still under construction; the concave-convex facade is his last work. The interior is oval, on a giant order of composite columns, and the statue of St Charles Borromeo is by Antonio Raggi. The Chiostro del Borromini belongs to this same complex rather than standing separately. No postcode is given here: the one OpenStreetMap carries for the building is not a valid Italian CAP.