Porta Tiburtina

Porta Tiburtina is one of the Aurelian gates of Rome. The gate originally was an arch, built under Emperor Augustus, in the point in which three aqueducts (Aqua Marcia, Aqua Julia and Aqua Tepula) passed over the Via Tiburtina. The arch was restored by Emperors Titus and Caracalla.

History
The arch of Augustus was incorporated in the Aurelian Walls by Emperor Aurelian. At the time of Honorius' restoration, in the 5th century, a second, external opening was built, with five small openings that enlightened the room where the gate was operated. With time, the gate changed its name into Porta San Lorenzo, because of the presence of the close by basilica of San Lorenzo fuori le Mura. Common people, however, called it Capo de' Bove or Porta Taurina, since the arch of Augustus was decorated with bull skulls.

Database entry
''This gate, adorned with lovely bull skulls, was originally an arch built by Emperor Augustus at the point where three seperate aqueducts passed over the Via Tiburtina. Later, when the Mura Aureliane (Aurelian Walls) were being built, engineers decided to incorporate the arch to save money and time.''