A Chinese construction company is claiming to be the world’s fastest builder after erecting a 57-storey skyscraper in 19 working days in central China.

Reaching for the sky in China.

Reaching for the sky in China. Image by damien_farrell / CC BY 2.0

The Broad Sustainable Building Company put up the rectangular, glass-and-steel Mini Sky City in the Hunan provincial capital of Changsha using a modular method, assembling three floors per day, company vice president Xiao Changgeng said.

The company, which has ambitions to assemble the world’s tallest skyscraper at 220 floors in only three months, worked on Mini Sky City in two spurts separated by winter weather. Its time-lapse video of the rapid assembly has become popular on Chinese video-sharing sites since it was first uploaded on YouTube. Watch: Mini Sky City, 19 days 757 storey building. (Press Association)