A few years ago on a Sunday early afternoon, I was strolling with friends after a visit to the Trevi Fountain. We were headed generally in the direction of the Palazzo Doria-Pamphilij We stopped for late lunch in a medium size, isolated-from-traffic piazza. The restaurant had tables and umbrellas outside. The interior was plainly furnished and had plaster, white-washed walls (perhaps). The food -- especially the huge selection of antipasti -- was LEGENDARILY good! I know this description is fairly generic -- but there was one other striking thing about the interior. There were photographs of famous patrons hanging about, including one of Barbara Bush. (Not that I'm a particular fan, but it's the most remarkable thing I can recall other than the memory of a sublime Sunday meal.) Any thoughts and suggestions about what restaurant this might be will be deeply appreciated.
The piazza, as I recall, did not have a traffic-ed street as a border, only buildings.