Pons Neronianus
Roma Capitale, Italy
The Pons Neronianus or Bridge of Nero was an ancient bridge in Rome built during the reign of the emperors Caligula or Nero to connect the western part of the Campus Martius with the Ager Vaticanus ("Vatican Fields"), where the imperial family owned land along the Via Cornelia.
Archaeological site data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).