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

In 4 hours, you can reach Praga.

In 5 hours, you can reach Monachium.

In 6 hours, you can reach Berlin, Linz.

In 7 hours, you can reach Wiedeń, Brno, Ostrawa.

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

In 9 hours, you can reach Paryż, Bruksela, Amsterdam, Zurych.

In 10+ hours, you can reach Rzym, Bukareszt, Budapeszt, Warszawa, Sztokholm, Kopenhaga, Zagrzeb, Lublana, Luksemburg, Mediolan...