界标
3.A fixed marker, such as a concrete block, that indicates a boundary line.
4.A similar pin forming a projection that may be used as a support or boundary marker.
5.In old days, people in this village used to snoot it out with those in that village for land mark or irrigation.
6.Shang city in Yanshi built in 1600BC was built earlier than Shang city in Zhengzhou built in 1580BC, so Shang city in Yanshi is the boundary of Xian and Shang dynasties.
7.The landmark about which they flew heeled was the Ziggurat of Ur ,a 4100year-old temple of baked mud bricks that rises 170ft from the desert.
