Svan towers
Georgia
The 186th tallest tower in the world
Svan towers (svanuri k'oshk'i) refers to the tower houses built as defensive dwellings in the Georgian historical region of Svaneti (present-day Samegrelo-Zemo Svaneti). These towers are unique to the region and were primarily built between the 9th and 12th centuries, during the Georgian Golden Age. However, the origins of the tower likely date back to prehistory. There are around 3500 Svan towers in Svaneti.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).