wikipedia.org/wiki/CitiesSilkRoad major settlements and trade hubs Cities along the Silk_Road (http://en.wikipedia.org/wiki/Cities_along_the_Silk_Road) Zhangye wikipedia.org/wiki/CitiesSilkRoad major settlements and trade hubs Cities along the Silk Road Zhangye Cities along the Silk Road wikipedia.org/wiki/CitiesSilkRoad Cities along the Silk Road Cities along the Silk Road Zhangye wikipedia.org/wiki/CitiesSilkRoad Cities along the Silk Road cities of the Silk Road http://en.wikipedia.org/wiki/Cities_along_the_Silk_Road