Here are a few suggestions for your next trip from St-Hilaire(Nord)

In 2 hours, you can reach Mons, Brussels, Charleroi, Anderlecht, Schaerbeek, Lille, Molenbeek-Saint-Jean, Ixelles, Uccle.

In 3 hours, you can reach Paris, Rotterdam, Antwerpen, Gent, Liège, Brugge, Namur, Leuven, Reims.

In 4 hours, you can reach Amsterdam, London, Luxembourg, Esch-sur-Alzette, Dudelange, The Hague, Schifflange, Utrecht, Köln, Bettembourg...