Once completed, Sky City will contain low-income housing, luxury condos, a hospital, a school, and retail space. And, BSB claims, it'll be strong enough to resist a 9.0 magnitude earthquake. In theory, if a grocery store moves into one the retail spaces, you could be born in Sky City and never have to leave.
How to Build the World's Tallest Skyscraper in 90 Days - Yahoo! News
How they'd do it-
How to Build the World's Tallest Skyscraper in 90 Days - Yahoo! News
How they'd do it-