Here are a few suggestions for your next trip from Leiden

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

In 3 hours, you can reach Bryssel.

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-sur-Alzette.

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

In 9 hours, you can reach Zürich, Liverpool.

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