The Colonnaded Street commences at the northern tip of the Oval Plaza and stretches to the northern gate, covering a distance of approximately 805 meters. This street is lined with side porticoes, featuring columns in the Corinthian style. However, in the area between the northern crossbow and the northern gate, the columns adopt an Ionic style. Notably, the columns vary in size, with the ones at the main entrances of buildings being larger and grander, a characteristic attributed to structures built in the first century AD.