Xi'an City Wall is the oldest, largest and best-preserved ancient city wall building in China. Yongning Gate is one of the main city gates in Xi'an.
Although it is relatively well preserved, it is also in a state of decay. More than 8,000 monitoring points guard the safety of the city wall and ensure that various nearby activities are carried out without exceeding the maximum carrying capacity. The city wall blends in with modern life and is connected to the world of old and new.