Croatian is a tough language. Trust me, I have been (trying to) learn Croatian for almost a year now. Everyone will tell you just how hard the language is to master - most Croatian's will even agree. But it's not hard to learn a few basic Croatian phrase
Kravice waterfalls, Bosnia and Herzegovina. I crawled behind the overgrown vegetation of one of the falls and the walls were covered with iridescent butterflies. Maybe the most beautiful thing I've ever seen.