The Roman ruins of Carsulae in the Communes of Terni and Sangemini are located along the original Via Flaminia, an important communication road of the Empire which joined Rome to the Adriatic sea.
This Roman municipality which was founded after the opening of the important consular road (III Century BC) was enlarged afterwards not only because of its favourable position along the Flaminia but also due to the beauty of the place, mentioned by Tacitus and Plinio il Giovane. The town was abandoned after an earthquake which destroyed the most important monuments.
A visit may start from San Damianos church built in the early Middle Ages on a pre-existing Roman building; then going along the road which passes in front of the Church (an urban part of the Flaminia which crosses Carsulae in a S-N direction) arriving at the forum; on the right the remains of the forensic basilica are visible, with three naves and apses; on the left public and religious buildings.
Continuing along the Flaminia where the paving stones are clearly visible you reach the arch of Traiano, also called San Damianos Arch which was built where the town ended. Immediately outside the ruins there are the ruins of a circular sepulchre and other smaller ones. Returning along the modern road you should admire the buildings for theatrical performances: the Amphitheatre constructed in a natural valley of the ground and the theatre where the first two steps are still visible and the construction of the horse-shoe shaped auditorium.