The title of this final thesis is: „The valorization of the cultural heritage of Šibenik through sustainable tourism“. The goal of this thesis was to show the potential models of valorization of the key cultural elements of Šibenik, keeping in mind the sustainability of tourism, respectively on keeping the importance of key cultural resources. The first part of the thesis focused on basic terms such as cultural heritage, or sustainable tourism, and briefly showed their influence in Croatia. The second part of the thesis elaborated on the key elements of the cultural heritage: the cathedral of st. Jakov, the fortification system and the old town, and showed their meaning to the city. The third part of the thesis showed the realized models of valorization of the key cultural resources, as well as the ones that have yet to be implemented. At the end of the thesis there is a conclusion which summarized all of the important elements of this thesis. The results of the conducted research show that Šibenik presents a model of good practice in the valorization of fortifications, which can be used in every other croatian historical city.