Sky City broke ground July 20 , will top out in April 2014 . 838-meter tower will house 30,000 residents , a hospital , school and shopping mall . Score: 6
Sky City broke ground July 20 , will top out in April 2014 . 838-meter tower will house 30,000 residents , a hospital , school and shopping mall . China to contain most and highest skyscrapers in coming years .