312 B.C. The censor Appius Claudius Caecus builds Rome’s first aqueduct, the Aqua Appia, which runs almost entirely underground. 144 B.C. Work begins on Rome’s longest aqueduct, the 56-mile ...

This gigantic aqueduct, built in the 1 st century AD, is a fascinating testament to the technical expertise of the ancient Romans and their ability to adapt to natural constraints. Listed as a ...