Tour de France cyclists crossing the Pont du Gard, France

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What is this grand structure?. Pont du Gard, France

Pont du Gard, a remarkable Roman aqueduct bridge and a UNESCO World Heritage Site since 1985, is situated in France. Built in the 1st century AD, it spans the Gardon River and served as a vital water supply system for the city of Nîmes. This architectural masterpiece features three tiers of elegant arches, constructed without the use of mortar. The bridge stands as a testament to the engineering prowess of the Roman Empire, and its well-preserved state attracts visitors from around the world who marvel at its grandeur and historical significance.