The object of the study is the process of globalization, the subject of the study is its impact on the structure of the art market and national artistic cultures. Based on the idea of a dialogical cultural model, which was adhered to by V. Bybler and M. Bakhtin, the author justifies the use of the term "dialogue of cultures" to characterize the processes taking place in the space of the modern art market. Special attention in the study is paid to the analysis of its structural transformations: according to the author, inclusivity, which primarily consists in the decentralization of the internal structure of the art market, is a key characteristic that allows to periodize its development into classical and modern stages. A special contribution of the author of the study is an in-depth analysis of exhibition projects: "Magicians of the Earth" by J.-Y. Martin, as well as "Cities in Motion" by H.-W. Obrist and H. Hanru. It is established how these projects aroused the interest of Western collectors in the exotic and changed the share of representation in the art market of non-European art. The main conclusion is that the process of globalization of the art market acutely poses the problem of deformation of the perception of cultural heritage: the appeal of the Western world to traditional cultures in the forms of cultural and art tourism leads to fragmentation and differentiation of once integral national artistic cultures.