Arco di Druso and Germanico. This arch is in via Arco di Druso just up from Porta Romana. It was erected in approx. 23 A.D. in honour of Drusus Minor abnd Germanicus, Tiberius' children, as can be gleaned from the inscription on the side looking towards what was the Forum and now piazza del Mercato. The arch was the triumphal entrance to the forum. It consists of only one barrel-vault in squared stone and little decoration. The left wall is now an integral part of the mediaeval houses along the street. From the right side, instead, thanks to the restoratino of the church of Sant'Ansano carried out in the fifties, the ruins of a first-century A.D. temple can now be clearly seen.