The Aqua Virgo was one of the 11 aqueducts supplying the city of Rome and was completed by Marcus Agrippa in 19 BC. The aqueduct was later revitalized by Pope Adrian I in the eighth century.
Description via Pleiades. Coordinates and heritage data from the Atika atlas.
Atika pings you when you walk or drive past heritage like this. Works offline, no account needed to explore.