We found this beautiful building completely by fluke, as its not one of the more famous remains located in Rome. We wandered into Piazza di Pietra and were completely stunned by the massive wall of columns that appeared before us. Not knowing much about the building, I researched the building and discovered: * it was built in 145AD by Antoninus Pius, who dedicated the building to his adoptive father, Hadrian. * the Corinthian columns are over 15 metres tall * what is left of the original structure is this side… the others were removed in the 1700’s for the construction of the Stock Exchange * only 11 of the original 15 columns remain. We stood in front of this building(you cannot enter the building) for over ½ hour, as it is quite stunning. There are a lot of street vendors on the piazza and several people trying to run scams… so be careful… but do not miss this building.