Here are a few suggestions for your next trip from Karlovac

In 2 hours, you can reach Zagrzeb.

In 4 hours, you can reach Lublana, Maribor, Rijeka.

In 5 hours, you can reach Graz, Kranj.

In 7 hours, you can reach Split, Osijek.

In 8 hours, you can reach Budapeszt, Wiedeń.

In 9 hours, you can reach Bratysława, Linz.

In 10+ hours, you can reach Berlin, Rzym, Paryż, Bukareszt, Warszawa, Sztokholm, Praga, Bruksela, Amsterdam, Zurych...