Tao-Klarjeti is a general name that was coined in the academic language of the 19th century to define the medieval Georgian heritage, movable and immovable, related to the “Georgian Kingdom” or the “Kingdom of Kartvelians”. Their Kingdom included the provinces of Erusheti, Artaani, Samtskhe, Shavsheti, Tao, Kola, and Klarjeti, which mainly comprised the basin of the River Chorokhi (Çoruh) and the headwaters of the River Mtkvari (Kura). Today it corresponds to the provinces of Erzurum, Artvin, Ardahan, and partially Kars in north-eastern Turkiye.
Bana Cathedral was one of two bishopric centers of the historic Georgian Tao region. Now all in ruins it is located on top of a small hill, near the village Penek (Erzurum) north-eastern Turkiye. The surroundings of the river Penek with its picturesque hillocks make a great impression on a viewer.