Ötüken
Mongolia · Orkhon-Selenga basin
The sacred heart of the steppe Turkic state. Not a city but a valley — where the Orkhon and Selenga flow, where the mountains drop low, where the khagans pitched the otağ. The stelae of Tonyukuk, Bilge and Kül Tigin were raised on this soil.
— Wikimedia Commons