Here are a few suggestions for your next trip from Karlovy Vary

In 4 hours, you can reach Prague.

In 5 hours, you can reach Munich.

In 6 hours, you can reach Berlin, Linz.

In 7 hours, you can reach Vienna, Brno, Ostrava.

In 8 hours, you can reach Bratislava, Hamburg.

In 9 hours, you can reach Brussels, Zürich, Schaan, Basel.

In 10+ hours, you can reach Rome, Paris, Bucharest, Budapest, Warsaw, Stockholm, Copenhagen, Amsterdam, Zagreb, Ljubljana...