Here are a few suggestions for your next trip from Königslutter

In 2 hours, you can reach Berlin.

In 3 hours, you can reach Hamburg, Dortmund, Bremen.

In 4 hours, you can reach Köln, Frankfurt am Main, Düsseldorf, Essen, Enschede, Dresden, Nürnberg.

In 5 hours, you can reach Poznań, Stuttgart, Strasbourg, Szczecin, Ústí nad Labem, Nijmegen, Arnhem.

In 6 hours, you can reach Prague, Brussels, Amsterdam, Rotterdam, The Hague, Munich, Basel, Utrecht, Liège, Liberec...