National central cities () are a group of cities in China charged with leading, developing, and performing tasks in politics, economics, and culture. The concept was proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China in 2005 as a first step in reforming urbanization in China. The national central cities' spheres of influence have great impact around the surrounding cities on modernizing and integrating services in fields such as infrastructure, finance, public education, social welfare, sanitation, business licensing and urban planning. Note that though both Shenzhen and Hangzhou rank higher on the GaWC in comparison to Wuhan, Zhengzhou and Xi'an, they were not included. File:Beijing skyline from northeast 4th ring road.jpg|[[Beijing]] File:Lujiazui 2016.jpg|[[Shanghai]] File:Tianjin Skyline 2009 Sep 11 by Nangua 2.jpg|[[Tianjin]] File:Guangzhou skyline.jpg|[[Guangzhou]] File:锦江夜景.jpg|[[Chengdu]] File:Zhengdong CBD 01.jpg|[[Zhengzhou]] File:1 xian china wild goose pagoda view.