Cahors (south of France): The Valentre Bridge across the Lot river. Listed as a National Historic Landmark (French 'Monument historique') and UNESCO World Heritage Site. Medieval fortified stone arch bridge, stopping-off point of the Way of St. James (Santiago de Compostella), pilgrimage route via Podiensis or route du Puy, hiking trail GR65. (Photo by: Morel J/Andia/Universal Images Group via Getty Images)