Here are a few suggestions for your next trip from Sachsenhausen(Nordb)

In 2 hours, you can reach Berlin.

In 3 hours, you can reach Hamburg, Szczecin, Dresden.

In 4 hours, you can reach Poznań, Ústí nad Labem, Bremen, Nürnberg.

In 5 hours, you can reach Prague, Munich, Wrocław, Liberec, Frankfurt am Main, Bydgoszcz, Essen, Enschede, Dortmund, Most.

In 6 hours, you can reach Warsaw, Łódź, Köln, Stuttgart, Düsseldorf, Kolding, Pardubice, Arnhem, Kladno.

In 7 hours, you can reach Amsterdam, Linz, Odense.