Koi Krylgan Kala (Russian: Кой-Крылган-Кала; Uzbek:??) is an archaeological site, located outside the village of Taza-Kel'timinar in the Ellikqal'a District (Russian:Элликкалинского район; Uzbek:??) in the Republic of Karakalpakstan, an autonomous republic of Uzbekistan. In ancient times it was sited along a canal in the Oxus delta region. There is some relationship between and Koi Krylgan Kala and Toprak Kala, 30 km to the northwest.[1] It is a temple complex of the Chorasmian Dynasty, an Iranian people who ruled the area of Khwarezm. It was built c. 400 BCE. The Apa-Saka tribe destroyed it c. 200 BCE, but later it was rebuilt into a settlement, which lasted until c. 400 CE.[2] It was discovered in 1938 by Sergey Pavlovitch Tolstov, leader of the Chorasmian Archaeological-Ethnological Expedition. It contained a Mazdian fire temple, and was decorated with frescos of wine consumption.