The most popular destination in Poland, Kraków is a city full of original, historical buildings, interesting museums, and an enchanting atmosphere. One can spend hours walking around the narrow streets of the Old Town, sitting and sipping coffee in one of the cozy cafes located in Kazimierz, or visiting one museum after another. While in Kraków, do not forget to see the Wieliczka Salt Mine (discovering the underground city of salt is a once-in-the-lifetime opportunity) or to pay a visit to the Auschwitz-Birkenau Memorial.