Aqua Augusta, Naples

The Aqua Augusta (or Serino Aqueduct) was one of the largest and most complex aqueduct systems in the Roman world, constructed during the Augustan period around 33 BC[1]. Unlike typical Roman aqueducts that served a single city, this regional network supplied water to at least eight cities in the Bay of Naples, including Pompeii and Herculaneum[1][2]. The system was notable for its engineering complexity, significant length, and high cost, making it one of the costliest infrastructure projects of its time[1].