This research presents a methodological framework for assessing the attractiveness of natural resources and landscapes and their importance for tourism development. The research is conducted in the area of Kopaonik Mountain in Serbia, which is partly, due to its natural values, declared a natural heritage of exceptional importance Protection Category I, i.e. the National Park. The goal of this paper is to identify and assess the tourist attractiveness of the natural resources (relief, hydrological and climatological characteristics, and vegetation) and landscapes in the National Park (NP) Kopaonik area. There are two independent methods used to assess the tourist attractiveness of natural resources and landscapes in this study. The first method is based on numerical and statistical analysis and quantitatively expresses the attractiveness of natural resources/elements (relief, climate, hydrology and vegetation) separately and all together, indicating the overall attractiveness of natural resources for tourism development. The second method envisages 8 criteria according to which natural landscapes are scored on a scale from 0 to 3. Based on a clearly defined model for assessing the attractiveness of natural resources and landscapes, we conclude that the area of Kopaonik National Park has a high level of tourist attractiveness.