Le Pont d'Avignon (the bridge of Avignon also knowed as Saint-Benezet Bridge) has achieved worldwide fame through its commemoration by the song "Sur le pont d'Avignon" ("On the bridge of Avignon"), a French song that dates back to the 15th century. The bridge is officially Pont St. Bénézet but it is better known as the Pont d’Avignon on which one dances, as the song says...
♫ Sur le pont d’Avignon
L'on y danse, l'on y danse
Sur le pont d’Avignon
L'on y danse tout en rond ♫
People probably would have danced beneath the bridge (sous le pont) where it crossed a river island (the Ile de Barthelasse) on its way to Villeneuve. The island was (and still is) a popular recreation spot, where pleasure gardens once stood and folk dancing was a popular pastime for many years.