Chicago-based architecture firm Studio Gang used a material called shotcrete to create the organic form of the central atrium’s walls.  Photo 5 of 10 in A Four-Year-Old Reviews the American Museum of Natural History’s New Gilder Center

A Four-Year-Old Reviews the American Museum of Natural History’s New Gilder Center

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Chicago-based architecture firm Studio Gang used a material called shotcrete, which involves spraying structural concrete directly onto rebar without formwork, to construct the central atrium’s walls.