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IMG_3849

The Sydney Opera House by Jorn Utzon; The famous white sails of the Opera House were called structurally impossible by engineers. Utzon solved the problem by building the "sails" out of identical concrete ribs connected together with steel. There are 2,200 ribs in the Opera House and more steel than the entire Sydney Harbour Bridge.

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Uploaded on November 20, 2009
Taken on July 18, 2009