Buyuk xitoy devori
Buyuk Xitoy devori qurilishi 2300 yildan ko’proq vaqt olgan (https://www.chinahighlights.com/greatwall/fact/building-time.htm#:~:text=Over%202%2C300%20Years%20in%209%2B%20Dynasties&text=Like%20Rome%2C%20the%20Great%20Wall,and%20renovated%20by%209%2B%20dynasties.) (mil avv 680 — milodiy 1681). Devorning turli qismlari Xitoyning turli sulolalari davrida qurilgan. Uning eni 5-8, balandligi esa 6-10 metrgacha yetadi. Devorning umumiy uzunligi 21 196 km.