Under the Sydney Opera House is another unique structure: a double helix carpark Posted by dualscyther on Sunday September 02, 2018 @02:33AM from the abc.net.au dept. http://www.abc.net.au/news/2018-02-08/why-is-the-sydney-opera-house-car-park-spiral-in-shape/9270864 ( no comments | 4 points | on HN )
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