Building a daringly formed new skyscraper in a city renowned for its skyline, is no easy task. With significant height, numerous cantilevers and an extremely small footprint, New York's “56 Leonard“ proved highly challenging to engineer and construct. For more by The B1M subscribe now - Read the full story on this video, including images and useful links, here: Images courtesy of Iwan Baan, Hufton Crow, Alexander
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