Bridge of Grand-Arvou built
1300 CE.
Shown on the map at 45.758°, 7.328°.
The Bridge of Grand Arvou (Italian: Ponte acquedotto di Grand Arvou, French: Pont aqueduc du Grand Arvou) is an aqueduct-bridge in the frazione Porossan of Aosta, north-western Italy. It span the Rû Prévôt irrigation canal, and includes a large corridor covered by flagstones. Another aqueduct-bridge, the Petit Arvou, is located a few meters downstream.
Text from the Wikipedia article Bridge of Grand Arvou, licensed CC BY-SA 4.0.