The so-called Roman bridge is in fact medieval but over another that is actually Roman, and using most of its materials. What is really best about it is the setting, with a small dam and mill building a truly photogenic set.
Access to the bridge
It is possible to reach the bridge by car, through an access of just over a hundred meters, but only as wide as a car. In low season you can take the risk, but in high season it will be more prudent to park on the main road and approach on foot.