The road straight on past S. Paolo leads to the
TRE FONTANE,
or Three Springs, which are said to have sprung forth when S. Paul was executed on this spot, his head rebounding three times after it was cut off. Three churches have been built here, but they are not of much interest.
The rambler can return to the city from S. Paul's by tramway, fare six sous, to the Piazza Montanara.
To the left the Strada delle Sette Chisse leads to the Via Appia, near the Church of S. Sebastiano.
THE VIA OSTIENSIS.
(Mr. Forbes's carriage excursion at frequent intervals.)
Instead of turning to the left to the Three Fountains, keep straight on. This is the pleasantest and prettiest road out of Rome, but the views are not so commanding as on some others. On the hill to the left was the Vicus Alexandrinus, where the Lateran obelisk was landed; at Tor di Valle we cross the stream that comes from the Vallis Ferentina,—the bridge is of the time of the kings; then the Rivus Albanus, the outlet of Lake Albano; we next cross the Decima stream; beyond, the Via Laurentina, at the Osteria of Malafede, turns off to the left. We descend to the valley of the Malafede, which is still crossed by the
VIADUCT OF ANCUS MARTIUS,
called Ponte della Refolta. It is worth while to get out of the carriage here and turn into the field at the gate on the left, over the bridge, to see this piece of ancient work, formed of great blocks of tufa stone of the time of the kings, having some repairs in opus reticulatum of the republic. The paved arch over the stream is in good preservation, and is older than the Cloaca Maxima, but not so well known. It is evidently the work of Ancus Martius, who made the port of Ostia, and consequently the road to get there. At the top of the hill above we get the first view of the sea and the last of S. Peter's. We now pass through the woods and along an ancient causeway through the salt marshes to the modern village of