Here are a few suggestions for your next trip from Grombach

In 2 hours, you can reach Frankfurt am Main, Stuttgart, Strasbourg.

In 3 hours, you can reach Köln, Düsseldorf.

In 4 hours, you can reach Luxembourg, Basel, Munich, Liège, Merl, Strassen, Essen, Dortmund, Reims, Arnhem...

In 5 hours, you can reach Brussels, Zürich, Paris, Esch-sur-Alzette, Hamburg, Dudelange, Utrecht, Schifflange, Bettembourg, Bern...