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 Brussel.

In 4 hours, you can reach Parijs.

In 5 hours, you can reach Londen.

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

In 7 hours, you can reach Berlijn, 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, Rome, Boedapest, Warschau, Wenen, Stockholm, Praag, Kopenhagen, Dublin, Zagreb...