14th and 15th century - UNESCO listed (2005). Classified MH (1862) 83, rue de la Mairie Saturday 17 and Sunday 18: Guided tours at 10 am, 10.30 am, 11.30 am, 12.30 pm, 1.30 pm, 2.30 pm, 3.30 pm, 3.30 pm, 4.30 pm, 5.00 pm, 5.30 pm and 6 pm Duration: 45 minutes The visit immerses you in the visual and sound ambiences of the Middle Ages and allows you to discover one of the largest carillons in Europe as well as a breathtaking view of the City of Giants after climbing the 195 steps. Free, on reservation on reservation.douaisis-tourisme.fr or 03 27 88 26 79 - Places limitée