Učit se >> Knižní průvodce

'The' complete (and I do mean complete!) guide to all the not-so-known sights of Czech republic. It is really very good, only two drawbacks: 1) The 'how-to-get-there' is only about how to drive there in your own car; 2) It only exists in Czech language, and the Czech applied is quite stylish and not too easy to understand for a foreigner (but delicious, if you're a linguist...).
Available in well assorted Czech bookstores.