Arch of Septimius Severus. Detail of the vault
The Arch of Septimius Severus, stands between the Rostri and the Curia. The side arches were accessed by short flights of steps, while the central passage was perhaps traversed by a road, now disappeared, that ran at a higher level than the present one, dating from the Agustean age. The detail shows the barrel vault decorated with rhombuses in relief
