Tracy
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- 25th February 2011
Tracy's activity
- February 2011
Tracy reviewed Huangyaguan Pass Great Wall in Tianjin, China
Huangya Pass Great Wall was built in 557A.D, with a total Length of 42km. There are defensive works, eg. a fighting platform and hathpaces, side defensive castles and troops bases, water gates and signal terraces. Since 1999, an International Ma…"
