6200018 The Colonne di San Lorenzo or Columns of San Lorenzo, Milan, Italy 2016 (photo) by .; (add.info.: The Colonne di San Lorenzo or Columns of San Lorenzo is a group of ancient Roman ruins, located in front of the Basilica of San Lorenzo in central Milan, region of Lombardy, northern Italy. The colonnade, consisting mainly of 16 tall Corinthian columns in a row, now fronts an open square. In the 4th century, the columns were moved here, after removal from a likely 2nd century pagan temple or public bath house structure); ?? Valerio Geraci; .