Here are a few suggestions for your next trip from Mery(B)

In 2 hours, you can reach Liège, Brussels, Anderlecht, Schaerbeek, Leuven, Molenbeek-Saint-Jean, Ixelles, Uccle.

In 3 hours, you can reach Luxembourg, Antwerpen, Gent, Köln, Charleroi, Düsseldorf, Diekirch, Ettelbruck, Namur, Merl...

In 4 hours, you can reach Amsterdam, Paris, Rotterdam, Esch-sur-Alzette, The Hague, Dudelange, Schifflange, Utrecht.