Among the numerous archaeological traces in Milan, some remains of the Roman walls are clearly visible. Although only a few sections of the circle erected in 49 BC remain, we know that the walls demarcated an area of approximately 80 hectares, much smaller than the present city and corresponding to a portion of the modern centre. One of the ancient towers can still be seen in via Carrobbio, while a piece of the original Roman walls was incorporated into a private building in via San Vito (located  behind via Torino, at street number 26)! The same is true of via del Lauro (at street number 7, near Teatro alla Scala), where the remains of a quadrangular tower can be found. In via Brisa, just a short distance from Castello Sforzesco, the sizeable remains of an Imperial Palace built by Maximian were unearthed. Based on the ruins, it’s easy to see that this was once a sumptuous building, equipped with every comfort, including heating. Not far from here, at no. 4 via dei Bossi, you can see the remains of an old warehouse built, at the same time, in a decentralized area of the city!