There are numerous open-air museums worldwide, and public spaces often incorporate both permanent and temporary outdoor exhibitions. Based on studies conducted on open-air museums and exhibitions in Vienna and its surrounding areas, as part of the academic cooperation program TU Vienna – TU Lviv, this article explores the European approach to the architectural and spatial organization of such institutions. Through this research, contemporary approaches to their architectural and spatial organization were examined, and both positive and negative aspects were highlighted. This article aims to analyze the distinct features of the architectural and spatial organization of European open-air museums and exhibitions, identifying their positive aspects and approaches that could be implemented in Ukraine. In Ukrainian studies, the topic of modern open-air museums is only gaining popularity and is not well presented. Hence, involving local scholars in this globally expanding field would be relevant. European open-air museums, particularly in Austria, show several trends in spatial organization, including a comprehensive approach, accessibility, family-oriented infrastructure, wide implementation of interactive elements, and integration of multimedia technologies. These museums blend original artifacts with modern enhancements to provide visitors with a unique experience. Noteworthy aspects observed in open-air museums and exhibitions, which are scarce or absent in Ukraine, include combining several neighboring objects into one museum complex, a large number of children's playgrounds, ample recreation and food areas, inclusiveness, infrastructure for dog walking, provision of venues for holding mass events, and onsite production and sale of themed merchandise in souvenir shops. The principles of spatial and architectural organization in open-air museums and exhibitions in Vienna and its vicinity boast several positive features that we believe are pertinent for implementation in Ukraine. Notably, interactivity to engage visitors and inclusivity, which is poised to be a pressing issue during Ukraine's post-war reconstruction, stand out as crucial aspects. The findings from this study can serve as a foundation for enhancing existing or designing new open-air museums in Ukraine.