One of the things that never ceases to amaze me, is how quickly China’s cities change. Buildings seem to pop up out of nowhere, and if you don’t visit a neighborhood for a few months it can look quite different. On average skyscrapers grow 1-2 stories per week, but sometimes it can go a lot quicker. See for example this time lapse video in which a 15-story hotel in Changsha gets build in just 6 days! Amazing.