The Citadel of Besançon A World Heritage Site by UNESCO. This impressive fortress offers a panoramic view of the city. There is also a zoo, museums and activities for the whole family. 2. The Cathedral of Saint-Jean A magnificent Romanesque cathedral, decorated with colorful stained glass windows and an old orgue. It is located in the center of the city. 3. The Jardin des Plantes de Besançon A grand botanical garden ideal for walking, discovering a variety of plants, and enjoying a peaceful environment. 4. The Musée des Beaux-Arts et de l'Archéologie L'Auteur de la rue La rue de France Auteur de la rue de France 10. The Cathedral houses a rich collection of old and fascinating works of art and architecture, and is located in the historic centre of the city.