The Pont du Gard is an ancient Roman aqueduct bridge that crosses the Gardon River in Vers-Pont-du-Gard near RemoulinsIt is part of the Nîmes aqueduct, a 50 km-long (31 mi) structure built by the Romans to carry water from a spring at Uzès to the Roman colony of Nemausus (Nîmes).It was added to UNESCO’s list of World Heritage Sites in 1985. Built in the 1st century AD, the Pont du Gard is the highest of all Roman aqueduct bridges and is, with the Aqueduct of Segovia, one of the best preserved.