The article studies pilgrimage tourism as a modern socio-cultural phenomenon on the example of major world religions. An attempt is made to explain and define its features, drawing a parallel between religious (cultural) tourism and pilgrimage. It is defined that at the heart of modern pilgrimage is an ancient religious tradition, which becomes a global socio-cultural phenomenon against the background of the weakening role of the world's political ideologies. In addition, pilgrimage contributes to the expansion of modern inter-civilizational contacts, making all corners of the planet accessible to pilgrim flows, but it dramatically changes the nature of interpersonal communication and is reflected in the spiritual attitudes of modern pilgrims. The various forms of modern pilgrimage, their features and manifestations in the intercultural communication of believers during the period of their religious journeys are also investigated. On the other hand, it is determined that the existing modern dominant global trends in the end-to-end commercialization, which turn resources, national cultural and religious shrines into goods. Therefore, although religious travel has its own characteristics, it is still concerned with the provision of traditional tourist services, as well as other tours, and pilgrimage becomes part of the tourism business. Considering pilgrimage as a socio-cultural phenomenon in the world religions, special attention is paid to the organic combination of national and supranational, that is, the practice of this ancient tradition common to a particular confession. For more understanding of principles of formation of streams of religious tourism the analysis of confessional differentiation of territorial religious systems on an example of Europe is made. Pilgrimage has been defined as a perspective type of tourism which can reach the international level, become the main attraction of both separate regions and the whole country and play an important economic role in the development of a certain territory. That is why the modern pilgrimage requires development and popularization.