Temporary urbanism has become increasingly prominent in urban planning practices and policy debates. However, while extensive research has focused on its application in the Global North, there is limit exploration of the Global South. To add relevant cases and broaden the theoretical debate, this thesis presents a comparative exploration of the practice of temporary urbanism in open spaces between the contexts of cities of Europe and Latin America. The theoretical framework of this thesis enhances the understanding of temporary urbanism as a global phenomenon by examining its diverse interpretations in European and Latin American contexts. Additionally, it introduces and explores the concept of "citizen urbanism," a term commonly used in Latin America to describe projects with characteristics similar to those of temporary urbanism.