Here are a few suggestions for your next trip from Leiden

In 2 hours, you can reach Amsterdam, Rotterdam, Antwerpen, Den Haag.

In 3 hours, you can reach Brüssel.

In 4 hours, you can reach Paris.

In 5 hours, you can reach London.

In 6 hours, you can reach Luxemburg, Hamburg, Lyon.

In 7 hours, you can reach Berlin, Esch-an-der-Alzette.

In 8 hours, you can reach Birmingham, Marseille, Genf, München.

In 9 hours, you can reach Zürich, Liverpool.

In 10+ hours, you can reach Madrid, Rom, Budapest, Warschau, Wien, Stockholm, Prag, Kopenhagen, Dublin, Zagreb...