The ruins of ancient historical city-fortress Petra are located in the village of Tsikhisdziri, Kobuleti region. It dates back to VI c A.D. Historically, the territory was inhabited by one of the Iberian tribes – the Lazes. The Byzantine Emperor Justinian built a city there because of its unique military-strategic and trade-economical location. Petra fortress controlled a road going across the coastal zone and connecting the region with Byzantium, Persia, and Armenia, and the Great Silk Road going from Byzantium and on via the Black Sea.