Via Ostiensis

The Via Ostiensis was an important road in ancient Rome. It runs west from the city of Rome to its important sea port of Ostia Antica, from which it took its name. The road began near the Forum Boarium, ran between the Aventine Hill and the Tiber River along its left bank, and left the city's Servian Walls through the Porta Trigemina. When the later Aurelian Walls were built, the road left the city through the Porta Ostiensis. In the Late Roman Empire, trade suffered under an economic crisis, and Ostia declined as an important port. With the accompanying growth of importance of the Via Portuensis from the time of Constantine onwards, that of the Via Ostiensis correspondingly decreased.

Roman bridges

There are the remains of at least one Roman bridge along the road, which is the Ponte presso Tor di Valle.

Modern Via Ostiense

The modern Via Ostiense follows a similar path to the old road, forming the main connection between Rome and Ostia together with the Via del Mare. On its way to Ostia, the road passes by the important basilica of Saint Paul Outside the Walls.