Roman remains
The Roman Bridge
The so-called Ponte Sanguinario was built in the 1st century BC, in the period when the Via Flaminia was improved by order of Augusto: formed from large blocks of travertine, it is 24 metres long, 4,5 metres wide and 8 metres high, divided into three arches; now it is in part subterranean. According to what some history scholars say, the name "sanguinario" derives from the fact that many Christian martyrs were murdered in this zone. The bridge was abandoned because the stream Tessino changed its course. Discovered in 1817, it was placed underground so that people could pass through Leonina Gate.
The Roman Theatre
Built in the 1st century AD, with a diameter 70 metres long, the structure was long buried underground and not easily identifiable because of the various medieval buildings that had arisen around it; it was totally restored only in 1954. One can admire part of the old flooring and other remains. Important cultural events are held in it each year.
Triumphal Arch of Druso
Erected in the 1st century AD by order of the Senato to honour Druso, Tiberio's son, and Germanico, it formed the entrance to the ancient Foro. Although partly hemmed in by more recent buildings, the arch still retains all its original beauty and classical balance.
Arch of Momtarone
This construction dates back to the 3rd century BC and its remains still reveal the massive architectural structure.
Roman Temple
Its ruins can be seen under the church of S. Ansano, near the crypt of S. Isacco.
Amphitheatre
There are only a few remains; built in the 2nd century outside the walls, it was transformed by Totila into fortress, then it was dismantled by order of Cardinale Albornoz to obtain stones.
Walls
The oldest ones can be admired along Cecili street; erected between the 5th and the 1st centuries BC, they show three different techniques of building: with polygonal, square and rectangular blocks.