Take the A9 autoroute southwest from Orange to the Fournys-Remoulins exit , then follow the D981 to this gigantic 2,000-year-old aqueduct , without doubt the most impressive of all the Roman mon ? ­ u ? ­ ments preserved from an ? ­ cient Gaul .
There is a 2,000-year-old aqueduct that has been preserved from ancient Gaul .