![](https://data.travelchinaguide.com/images/TCG/qa/icon/nohead.jpg)
Asked by Mrs.Huseman from USA | Mar. 02, 2009 09:27
![](https://data.travelchinaguide.com/images/tcg/answers/btnReply.jpg)
About:Great Wall of Wei, Jin, Song and Yuan Dynasties
Does anybody know if the Great wall is experiencing any structure changes