China to build world’s tallest building- in just 90 days

When completed by the end of next March, Sky City in Changsha will be the tallest skyscraper in the world, standing at 2,749ft (838m) high, over 220 floors. And remarkably, they’ve not started building it yet.

It took Dubai more than five years to build the world’s tallest building, the 828mBurj Khalifa, but architects and engineers at Broad Sustainable Building (BSB), a unit of the air conditioning maker Broad Group, are confident they can beat that record.

China-based Broad will employ 3,000 workers for the project.

Sky City is expected to cost around 400 million pounds, significantly less than the 940 million pounds Burj Khalifa, which took more than five-years to build.