Here are a few suggestions for your next trip from Radomysl(PL)

In 3 hours, you can reach Warsaw, Lublin.

In 4 hours, you can reach Łódź, Białystok.

In 5 hours, you can reach Poznań, Gdańsk, Katowice, Częstochowa, Sosnowiec.

In 6 hours, you can reach Kraków, Bydgoszcz, Gdynia.

In 7 hours, you can reach Wrocław, Szczecin.

In 8 hours, you can reach Berlin, Ostrava, Havířov.