Pont d'Avignon, Boulevard de la Ligne, 84000 Avignon, France
The Pont St-Bénézet is so famous it even has its own song, “Sur Le Pont d’Avignon” (as the bridge is more commonly known). The last crossing on the Rhône between Lyon and the Mediterranean Sea, the 3,000-foot bridge was built between 1177 and 1185, using similar engineering to the Pont du Gard (one of the world’s most famous Roman aqueducts, just up the road). As legend has it, the process began when a young shepherd named Bénézet heard voices telling him to build the bridge, then carried a boulder down from the mountains and threw it into the water to lay the foundation. The bridge was later destroyed during a siege in 1226 and rebuilt in 1234 with 22 stone arches. Due to flooding, all that remains of it today are four arches, but it’s worth a visit for historical purposes. You can purchase one ticket for entry to both this UNESCO World Heritage site and the adjacent Palais des Papes.