InBeijing,acitywithahistoryofmorethan3,000years,anaxisthathasbeenextendingformorethan700yearshasstrungtogetherinthecity’sculturalheritages.Mr.LiangSichengoncepraisedBeijing’scentralaxisas“thelongestandgreatestnorth-southcentralaxisamongallcitiesintheworld,whichlaidthefoundationforthelayoutoftheentirecity”.SohowdidtheoldcityofBeijingformasymmetricallayout?Howhasthecentralaxischangedinthenewera?Today,let’sexplorethis“3,000-year-oldconstructiondrawing”fromhighabove,throughthelensofsatellites.Editor:DisclaimerTheviewsandopinionsexpressedinthisarticlearethoseoftheauthor's,GMW.cnmakesnorepresentationsastoaccuracy,suitability,orvalidityofanyinformationonthissiteandwillnotbeliableforanyerrors,omissions,ordelaysinthisinformation.