The article is devoted to the classification, architectural, planning and urban planning features of aerospace museums. The study contributes to the study of existing architectural, planning and urban planning solutions of aerospace museums, as well as touches on the topic of trends in their further development. Based on the analysis of scientific papers, literature on the topic of museum classification, foreign and domestic experience in designing aerospace museums, the authors determine the place of aerospace museums in the system of general classification of museums, due to its incompleteness, they propose an additional division of aerospace museums into specialized subgroups: cosmonautics museums, aviation museums, rocket museums technology, complex aerospace museums; by the nature of the exposition, static, interactive and mixed; by the scale and volume of the collection, large and local. Based on the variability of internal spaces, depending on the nature of the exposition, location, place in the classification of museums and functional zoning, the authors propose to divide aerospace museums into the following main types of placement: museum space and museum complex; and the following main types according to the type of organization of exhibition spaces: open-air, pavilion, pavilion dispersed, atrium, communal and mixed. Analyzing the main options for the placement of aerospace museums, the authors came to the following typology of placement: urban zone, suburban zone, on the basis of specialized sites, on the basis of memorial sites.