Guangzhou is the 3rd-largest Chinese city, behind Beijing and Shanghai; holds sub-provincial administrative status;and is one of China's six National Central Cities. In 2014 the city's administrative area was estimated to have a population of 13,080,500 and forms part of one of the most populous metropolitan agglomerations on Earth. Some estimates place the population of the built-up area of the Pearl River Delta Mega City as high as 44 million without the Hong Kong SAR and 54 million including it. Guangzhou is identified as a Beta+ Global city. In recent years, there has been a rapidly increasing number of foreign residents and illegal immigrants from the Middle East, Eastern Europe and Southeast Asia, as well as from Africa.This has led to it being dubbed the "Capital of the Third World."The migrant population from other provinces of China in Guangzhou was 40 percent of the city's total population in 2008. Most of them are rural migrants, and they speak only Mandarin. They have taken on many jobs that the local citizens are unwilling to do. >> Canton Tower VS Macau Tower >> Peak Tower Hong Kong VS Canton Tower Guangzhou