Now skip to the late first century A.D.! Rome had a Director of Water Works, who was in charge of maintaining the city’s 11 aqueducts. One of the directors, Frontinus, writes in his treatise De Aquaeductu that different pipes “distributed the Virgo’s water throughout the seventh, ninth, and fourteenth regions, thanks to 18 tanks” (Book II, 84). The distribution tank in the underground site Vicus Caprarius is the only tank of the 18 to have been found in Rome… See it with your own eyes!
The apartment buildings’ transformations in late antiquity are also surprising. During an enemy invasion in the 6th century A.D., the buildings burned. Their collapsing walls caused ground level to go up. It’s an amazing phenomenon that occurred all over Rome. But here it becomes tangible.