Tengriist sacred space is, above all, the living landscape itself. Rather than enclosed temples, the tradition favors open, natural settings where the sky can be seen and felt directly. Mountains, ridges, and solitary hills are especially revered, as their height brings worshippers closer to the realm of Tengri, the eternal blue sky. Vast stretches of steppe, with their unobstructed horizons, likewise serve as fitting places for prayer and ritual. Springs, rivers, and lakes are honored as sources of life and as dwelling places of powerful spirits, and large or unusual trees and groves are treated as natural altars. In such places, the sense of sacredness arises less from human construction and more from an attunement to the qualities of the land and sky.

Where human hands do mark the sacred, the structures remain simple and closely integrated with nature. The most characteristic are ovoo or oboo: cairn-like mounds of stone and wood, often conical, built on hilltops, mountain passes, or other elevated and liminal places. These cairns may hold offerings and are commonly adorned with blue or multicolored cloths and ribbons, symbolizing the sky and the winds that move through it. Worshippers circle these mounds, leaving milk, vodka, coins, or other gifts, and the accumulated offerings and prayer flags make the site visibly distinct from its surroundings. Sacred trees, similarly decorated with cloth strips or flags, and occasional poles or posts that evoke a world tree or axis between earth and sky, further express this union of the natural and the symbolic.

The geographic spread of such sites follows the historical range of the steppe and mountain peoples who honored Tengri. They are found throughout Mongolia, including the Altai and Khangai mountain regions and areas around major lakes, and extend across the steppes and highlands of southern Siberia, such as the Altai Republic, Tuva, and Buryatia. Comparable sacred places appear across Central Asia, in parts of Kazakhstan and Kyrgyzstan, and in regions historically associated with Inner Asian Turkic cultures. In all these lands, sacred cairns, trees, waters, and rock formations are situated where sky, earth, and the human journey intersect—mountain passes, borders, crossroads, and other thresholds. The overall impression is that the “temple” of Tengriism is not a building but a way of inhabiting the world, in which the open sky and the enduring features of the land form the primary sanctuary.