Northeast of the French village of Lunel, where the Via Domitia crossed the Vidourle River, lies the ruins of Roman Ambrussum.
This interesting archaeological sites holds three main attractions, the Iron Age defended settlement known as the Oppidum, a Roman era staging post complex and the remains of the nearby Roman bridge. The river was once spanned by this magnificent 11-arch stone bridge, the first century BC Pont Ambroix, of which only one arch now remains.
A new (2011) visitor's centre and museum exists for history buffs and one can walk the rutted old cobblestone roads to the Oppidum and see the reconstructed ramparts dating to before the Roman period.
Not an extensive or overly impressive site but certainly worth a look while in the area.