Join 食品与饮料 upcoming events being held in Yonne. Yonne is a beautiful department in the Burgundy-Franche-Comté region of France, known for its picturesque countryside, historic towns such as Auxerre and Sens, and the magnificent Château de Guédelon, a medieval castle being built using only traditional techniques and materials, making it an ideal destination for history enthusiasts and nature lovers alike.