
The aqueducts were an essential tool in making it possible for up to 1 million people to inhabit Rome.

Water from the areas surrounding Rome was carried by the aqueducts into the heart of the city itself.
In sections close to the city center, two pipes are led in parallel.
The aqueducts were built of bricks, which is probably why their building materials were not taken and reused in other more recent buildings, like the marble of the Colosseum.

You still find a section of aqueduct between the Piazza Di Porta San Giovanni and the rail tracks coming from Stazione Termini at Piazzale Labicano.
This section of the aqueduct clearly shows the pipe on top of the structure, which carried the water into the city center.