Piazza Colonna Piazza Colonna Piazza Colonna is a piazza at the center of the Rione of Colonna in the historic heart of Rome, Italy. It is named for the marble Column of Marcus Aurelius, which has stood there since AD 193. The bronze statue of Saint Paul that crowns the column was placed in 1589, by order of Pope Sixtus V. The Roman Via Lata (now the Via del Corso) runs through the piazza's eastern end, from south to north. The piazza is rectangular. Its north side is taken up by Palazzo Chigi, formerly the Austria-Hungary's embassy, but is now a seat
Sant'Agnese in Agone plan but made adjustments; on the interior for instance, he positioned columns towards the edges of the dome piers which had the effect of creating a broad base to the dome pendentives instead of the pointed base which was the usual Roman solution. His drawings show that on the façade to Piazza Navona, he designed curved steps descending to the piazza, the convex curvature of which play against the concave curvature of the façade to form an oval landing in front of the main entrance. His façade was to have eight columns and a broken pediment over the entrance. He