Historical High Tech
As Jaume Vallcorba said, we’re only interested in those regions which were, at some time or other, invaded by the Romans. Their artists were perhaps not so refined as the Greeks, but their civil engineers were unparalleled.
The aqueduct of Arles, which is really two aqueducts, here supported by a series of arches but which mostly runs through a conduit below ground level, is irrefutable proof of that.