My friend Dong Heng insisted that the Great wall is a mustsee and that without doubts it must be seen in Baadolin. We went there by bus, like most other tourists going to see this wonder of the world. The wall itself is not so high, and it is very populated until you walk far enough from the bus stop. But little by little crowds vanish behind and at some moment you discover yourself tete-a-tete with history. I was standing on the grey bricks and watched the wall winding along green hill slopes. It seemed endless. There was no desire to check its length this time and we turned back. It was time to return home.