One of the most charming historic city in Czech republic. Protected by UNESCO. After Prague is most visited by foreign tourists. Completely unique preserved gothic and renaissance historic center with second biggest castle/chateu after Prague castle (Prague castle is in Guiness book of records as biggest castle on world). Really nice surroundings landscape with many big hills and rivers and almost no industry - just small villages, farms, animals (horses, cows and so on). I can recommend it!