The Aqueduct of the Anio Novus is one of the most imposing aqueducts built in ancient Rome, begun under the Emperor Caligula in AD 38 and completed under Claudius in AD 52. This aqueduct, the highest of those in Rome, extended for about 86.876 km, of which about 73 km ran underground and 14 km above ground.

The Anio Novus drew its water from the river Aniene, initially collecting it near Subiaco, where Nero had three artificial lakes built to improve water quality through a system of natural settling. Later, the Emperor Trajan altered the intake point, moving it further downstream.

The course of the Anio Novus shared several sections with other aqueducts, in particular the Aqua Claudia, and crossed several significant archaeological areas, including the Parco degli Acquedotti in Rome. The above-ground stretch was supported by imposing arcades, some of which are still visible today.

The water of the Anio Novus was known for its great daily flow, the highest of all the Roman aqueducts, but it was also prone to becoming muddy during rain, despite the various settling systems used to improve its quality.

These arches not only represent an extraordinary feat of engineering but also bear witness to the sophisticated network of infrastructure that ensured the water supply of the city of Rome, supporting an ever-growing population and its urban development.