Ysyakh is an ethnic holiday of the Sakha people, northern horse breeders of the world, which is a unique Arctic culture. It vividly reflected the ecological culture of Sakha with its ideological complex of reverence for nature and careful attitude to all living things.Ysyakh includes a whole complex of ceremonial and ritual actions that reflect the philosophy and meaning of the holiday. For their holding, special religious buildings were erected, which are real masterpieces of wooden architecture. The venue for the celebration was the area associated with the name of the legendary cultural hero Elley, the progenitor of the Sakha people, who settled in the sacred valley of Tuymaada, on which the city of Yakutsk is located. An architectural and ethnographic complex was created on this territory in 1998, where ceremonial buildings were combined in a single ensemble, wooden architecture structures and works of folk craftsmen from many uluses of the republic, preserving the sacred symbols of their ancestors, were collected. Among these objects, ritual structures stand out as an obligatory component of the celebration, which has a sacred meaning: “Aar ba5akh”, “Ytyk ba5akh”, “Toi aana”, “Altan serge”, “Aiyy beleie”, etc. This huge architectural and ethnographic complex includes 14 ritual and ceremonial centers, 240 religious objects, 35 buildings for ulus guests, 8 sites for districts and 40 for city enterprises participating in the holiday.