Dinan is a town in Brittany, northwest France. It’s known for its medieval ramparts, cobblestone streets and half-timbered houses. Dinan Castle has a 14th-century keep and the Tour du Coëtquen, a 15th-century artillery tower. The grand, Gothic-style Saint-Malo Church has vibrant stained-glass windows. The Clock Tower offers panoramic views. The Rail Museum has model railways, plus posters and signal boxes. ― Google