唐城墙遗址公园

This guide to the Tang City Wall Ruins Park in Xi'an walks the 3.6-kilometer footprint of the southern wall of Tang Chang'an, once home to what may have been the largest city on earth, with historians still arguing whether its true population reached eight hundred thousand or closer to two million. You'll hear how camel caravans, Persian merchants and Japanese monks once funneled through gates along this stretch, and how architect Zhang Jinqiu later replaced the vanished ramparts with a ribbon of Tang poetry, carved reliefs and a hedge maze. Head for the round recitation stage and listen for what the curved walls do to a whisper.