The Pont du Diable or Pont Vieux is a medieval stone arch bridge at Céret, France, built between 1321 and 1341. It spans the Tech River with a single arch of 45.45 metres. At its apex, the arch is 22.

The Pont Grand is a stone bridge connecting Tournon-sur-Rhône to Saint-Jean-de-Muzols, in Ardèche, France, built between 1379 and 1583. The bridge features a single, semi-circular arch over the river