Late in 2011, a 328-foot-tall, 30 storey tower called the T30 appeared in China’s Hunan Province, seemingly from out of nowhere. The skyscraper was built in only 15 days, at a fraction of the typical cost.
The same Chinese company that built the 30 storey tower in 15 days did one better: The Broad Sustainable Building Co. constructed a 57 storey ‘Mini Sky City’ in only 19 days. Mini Sky City boasts 19 atriums, 800 apartments and office space for 4,000 people. Broad claims they are the fastest building company in the world.