Que tower ( English pronounce = chur ) 闕
http://en.wikipedia.org/wiki/Que_(tower)
Que is a freestanding gate tower in traditional Chinese architecture. First developed in the Zhou Dynasty ( 1046 BC–256 BC ) , que towers were used to form ceremonial gateways to tombs, palaces and temples throughout China.
A Que stone carving relic form Han dynasty ( 206 BC–220 AD ), placed in Three Gorges Musium, Chongqing city.
http://www.3gmuseum.cn/article.asp?3-13-980
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阙的设置。最初只有天子才有资格设置阙,成为宫阙,僭越之后,阙大量用于各种场所,不仅宫殿前设阙,城门外、寺庙前、陵墓道两旁都设置阙,成为宫阙、城阙、庙阙、墓阙。甚至衙署和大门前都可以设置阙。
The use of que gateways reached its peak during the Han Dynasty, the free-standing towers were placed in pairs in front of the entrances to the palaces, temples, and government buildings of the period .
See more in Google images-- ( or go to visit the musium!)
https://www.google.co.uk/search?neww...rPw1I#imgdii=_
the Que Tower in Wu Kingdom Palace , rebuilt in front of Taihu Lake.