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

In 4 hours, you can reach Prag.

In 5 hours, you can reach München.

In 6 hours, you can reach Berlin, Linz.

In 7 hours, you can reach Wien, Brünn, Ostrava.

In 8 hours, you can reach Bratislava, Schaan, Hamburg, Vaduz.

In 9 hours, you can reach Paris, Brüssel, Amsterdam, Zürich.

In 10+ hours, you can reach Rom, Bukarest, Budapest, Warschau, Stockholm, Kopenhagen, Zagreb, Laibach, Luxemburg, Mailand...