Mini Sky City

While New York City developers have been laser-focused on bringing us the world's tallest residential towers, the Chinese are in pursuit of another marker: building them the fastest. A 57-story skyscraper was recently completed in Changsha, Hunan Province in just 19 working days, erected at an incredible rate of three floors a day. Called "Mini Sky City," the construction is an assembly of 2,736 glass-and-steel modules fabricated off-site over the course of roughly five months. Though the tower may have come quickly, the offerings within don't fall short: the new high-rise boasts 19 atriums, office space for 4,000 people, 800 apartments, and is reportedly earthquake-resistant.
Watch the incredible video here