Lifelong resident Zhou Dechong, 80, says he is stunned by the speed of development in the teeming metropolis which, like many Chinese cities, is plagued by chronic traffic jams, dirty air and the deafening sound of jack-hammers.
"In every aspect, the pace of development has been very fast," Zhou told AFP.
More than 350 million people are expected to move to Chinese towns and cities in the coming years, boosting the country's urban population to one billion by 2030, according to a report by consultancy firm McKinsey & Company.
The unprecedented urbanisation will more than double the number of cities with one million residents to 221 and require the construction of five million buildings, including 50,000 skyscrapers -- equivalent to 10 New Yorks, it said.