Here are a few suggestions for your next trip from Nienburg(Weser)

In 2 hours, you can reach Bremen, Hamburg.

In 3 hours, you can reach Berlin, Essen, Enschede, Dortmund.

In 4 hours, you can reach Köln, Frankfurt am Main, Düsseldorf, Arnhem, Nürnberg.

In 5 hours, you can reach Amsterdam, Utrecht, Liège, Groningen, Stuttgart, Strasbourg, Kolding, Almere Stad, Nijmegen, Dresden.

In 6 hours, you can reach Brussels, Rotterdam, Antwerpen, Munich, The Hague, Basel, Odense, Poznań, Esbjerg.