Broad Sustainable Building has again demonstrated its ability to defy the conventional constructions norm. Using 2700 prefabricated modules, constructed in their factory 4 months prior to assembly on-site in Changsha, China, they were able to complete a 57-story skyscraper in just 19 days. Watch this time lapse video of the 1200 workers working around the clock to perform this amazing feat.
Source: The Guardian / YouTube
