Great Wall of China
Great Wall of China, China me ek bahut purana patthar ke diwaal hae, jiske Chinese empire ke uske dusman se bachae ke khatir banawa gais rahaa. II insaan ke banawa gais sab se lambaa structure hae, jon ki 6400 kilometres lamba hae aur Shanhai Pass se Lop Nur talak jaawe hae.
Great Wall ke chaurai 5 log ke baraabar hae aur uunchai 20 log ke baraabar hae.