The Pont du Gard, a Roman aqueduct, UNESCO World Heritage Site, Vers-Pont-du-Guard, Occitanie, France, Europe

the pont du gard roman aqueduct unesco world heritage site vers pont du guard occitanie france europe aqueduct roman aqueduct roman engineering ancient rome southern france france provence arches stone arches bridge river valley aerial view landscape history architecture travel tourism vacation landmark historic site ancient structures unesco roman history roman empire roman structures engineering construction ancient europe