The greate wall of the china is most popular world wonder.it located in china,approximately 8,851.8 kilometers (5,500 miles) from east to west of China.it includes part of chain culture.It was built in the 18th year. On April 18 in 2009, the length of the Great Wall of Ming Dynasty (1368-1644) was announced after a full investigation. It is 8,851.8 km (5,500 miles) long from Hushan Great Wall in Liaoning and Jiayuguan Pass in Gansu. The wall in Beijing measures over 550 km (342 miles) long.it passes 156 counties in ten cities or provinces including Liaoning, Hebei, Tianjin, Beijing, Shanxi, Inner Mongolia, Shaanxi, Gansu and Qinghai.
