- China's Great Wall stretches east-west for more than 5,000 kilometers. Its origins can be traced to the seventh century BC, when independent kingdoms constructed separate walls to keep out marauding nomads. China's first emperor linked many of these during the Qin Dynasty (221-207BC). It was renovated several times in later centuries. Built along the rolling ridges of steep mountains, it offers spectacular, even awe-inspiring views, and is surely one of humankind's greatest architectural achievements. For specific details on the Great Wall refer to Ba Da Ling, Mu Tian Yu, Si Ma Tai and Huang Hua.
- © wcities.com 2013