Bilanishvili Tower (Butulaant Koshki)

When driving from Tbilisi toward the heart of Kakheti, it is easy to fixate on the renowned wineries and grand monasteries, leaving the smaller monuments completely overlooked. The Bilanishvili Tower, locally known as Butulaant Koshki, is exactly that kind of place—a raw, unvarnished fragment of Georgian defensive history that stands silently in the landscape, bypassed by most travelers heading deeper into the wine region.

The Shield of the Outer Kakheti Plains

Located in the Sagarejo municipality, this stone fortress tower is a classic example of Georgian vernacular defensive architecture. Constructed primarily during the late medieval and early modern periods—likely during the 18th century—such towers were commissioned by local noble families or wealthy clans like the Bilanishvilis to protect their lands and laborers.

During this turbulent era, Eastern Georgia was frequently subjected to sudden, devastating raids from the North Caucasus mountains, a long period of regional conflict historically remembered as Lekianoba. Because large fortresses were often too far away to reach during a surprise attack, communities relied on these smaller, localized towers. When warning fires were lit across the valley, local families would gather their valuables, livestock, and supplies, retreating behind the thick stone walls to withstand a siege until relief forces arrived.

Architecture and Structural Layout

The engineering of Butulaant Koshki reflects the practical realities of survival in the 18th-century Kakhetian countryside. The tower is built entirely from rugged river stones gathered from local riverbeds, held together by a durable lime mortar mixture that has withstood centuries of weathering.

The exterior walls taper slightly as they rise, a design choice providing greater structural stability against earthquakes and artillery. A close inspection of the stone masonry reveals narrow, strategically angled embrasures and loopholes designed for firing muskets or arrows while maintaining maximum cover for the defenders inside.

Originally, the interior of the tower was divided into multiple wooden floors connected by internal ladders, separating the living quarters, ammunition storage, and defensive platforms. While these wooden levels have long since decayed and vanished, standing inside the base and looking upward through the hollow stone shaft offers a powerful perspective on the scale and isolation of this historic outpost.