The 62-metre-tall belfry is an imposing yellow-brick tower built in the Flemish neo-Renaissance style. It was reconstructed after the 1918 bombing raids. All that remains of the original building is a Gothic 12th-century hall. There is a postcard exhibition on display, showing how Bailleul was almost completely demolished during the First World War. If you can get up the 200 steps, you'll reach the balcony and enjoy a splendid view over the plains of the Flanders Hills. The belfry is adorned with a dome-shaped bell chamber on top of which Melusine the mermaid, weather-vane and symbol of the Bailleul, watches over the city.