Here are a few suggestions for your next trip from Köln Hbf

In 2 hours, you can reach Köln, Liège, Frankfurt am Main, Düsseldorf, Essen, Dortmund, Brussels, Anderlecht, Eindhoven, Schaerbeek...

In 3 hours, you can reach Amsterdam, Antwerpen, Gent, Utrecht, Charleroi, Stuttgart, Tilburg, Strasbourg, Breda, Namur...