Xi’an,calledChang’aninancienttimes,wasanancientcapitalandthebirthplaceofChinesecivilization.Itservedintermittentlyasthecapitalof13dynastiesover1,200years.Xi’anwasthefirstcitytoopenitsdoorstotheworldinancientChina.IntheHanandTangDynasties,itwasthecenterofChina’spolitics,economy,cultureandinternationalexchange.TherearealargenumberoftreasuredculturalrelicsandsitesinXi’an.TheTerra-cottaWarriorsandHorsesarehonoredas“TheEighthWonderoftheWorld”.TheAncientCityWallofXi’anisthelargest,bestpreservedruinofancientcitywallintheworld.Owingtoitsbrilliantculture,longhistory,aswellasabundantrelicsandsites,Xi’anenjoysthelaudatorytitleof“NaturalHistoryMuseum”.