In this Bachelor thesis, the author, on the basis of historical facts, presents and substantiates the emergence of the circumstances that fostered and enabled the development of Fascist and Nazi ideology in the twentieth century. In what follows, the author focuses on exploring and presenting the fundamental concepts and ideas of Nazi ideology. The author then tries to find the basic concepts and ideas in the ideas and concepts of neo-Nazi organizations and political parties that belong to the radical right-wing political spectrum. They focus on the role of populism in spreading ideology and on the typology of radical right-wing political parties. In showing the typology of political parties, they point to similarities and differences on the right side of the political spectrum. In the last part of this thesis, the author focuses on the research of the rise of radical right-wing political parties in Europe. Based on the analyses of economic, emigrant, and social crises that have taken place, the author presents the conditions that enabled the resurgence of radical right-wing ideology.