Preservation of cultural heritage is an important aspect of the activities of every country, and modern technologies play an important role here. In this research paper, we will consider the synthesis of traditional and modern methods of researching architectural and historical objects on the example of the oldest sacred sites in Lviv. The digitization of cultural heritage sites is a technological and modern approach to documenting objects. However, fixing the current state of an object alone does not give a complete picture of the object of study. Therefore, the study of historical materials should be combined with the process of digitizing them, which will provide more complete information about the object of study. The article discusses the methods of photogrammetry and laser scanning of buildings and their combination. The advantages and disadvantages of the two approaches and the possibility of combining them to achieve the best result are identified. The options for popularizing digitized cultural heritage objects in the form of 3D models and their distribution on the Internet or 3D printing of souvenir models are also considered.