It took more than five years to build the 828-meter ‘Burj Khalifa’ in Dubai, the current world’s tallest building.

Chinese architecture firm Broad Sustainable Building claims that they will take that title by constructing a 838-meter building called the ‘Sky City’ only in 90 days. The building will have 220 stories—providing 1 million square meters of floor space, which is serviced by 104 elevators.

Broad Sustainable Building already is renowned for its time efficient construction after building a 15-storey building in six days in 2010 and constructing a 30-storey hotel in 15 days in 2011.

A 838-meter building in 90 days, is that even possible??

Source: Link