During the Roman Age, named Tibur, it gained a certain importance, also being on the way that Romans had to follow to the mountain regions on the Apennines[?].
It became a residential area and was enriched by Roman villas like Villa Adriana[?] (Hadrian's Villa).
It is the most important center for the production of Travertine, a particular white calcium carbonate rock which most of Roman monuments were made of.
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