TIL that In 2011, a Chinese construction company called Broad Sustainable Building built a 30-story hotel called the T30 in just 15 days in the city of Hunan. See comments for the rest.

TIL that In 2011, a Chinese construction company called Broad Sustainable Building built a 30-story hotel called the T30 in just 15 days in the city of Hunan. See comments for the rest.

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