Shanghaiguan Great Wall
Shanghaiguan Great Wall, or Shanhaiguan Pass, is the most east part and one of the most important part in China great walls. It was composed by Guancheng, Dongluocheng, Nanyicheng, Beiyicheng, Weiyuancheng and Ninghaicheng, the 7 structures, connected by 4769 meter long, 11.6 meters high and over 10 meters thick walls. Shanhaiguan Pass was a famous part of the whole defense projects, and played important roles in the cultural and economical exchanges during ancient times.
