Here are a few suggestions for your next trip from Freiburg

In 2 hours, you can reach Zürich.

In 4 hours, you can reach Paris, Luxembourg, Schaan, Geneva, Esch-sur-Alzette, Vaduz, Lyon.

In 5 hours, you can reach Brussels, Munich.

In 6 hours, you can reach London, Amsterdam, Hamburg, Milan, Marseille, Rotterdam, Antwerp.

In 7 hours, you can reach Berlin.

In 9 hours, you can reach Rome, Vienna, Birmingham.

In 10+ hours, you can reach Madrid, Budapest, Warsaw, Stockholm, Prague, Copenhagen, Dublin, Zagreb, Bratislava, Ljubljana...