Inside tip · Sydney
Roughly how many tiles cover the Sydney Opera House roof?
Answer: About 1 million
The roof has 1,056,006 tiles; Sweden's Höganäs spent three years developing them for architect Jørn Utzon.
Utzon realised the shells could be derived from the surface of a sphere: the 'spherical solution'. His team explored roof shapes between 1958 and 1962.
Sydney guide →Book it on GetYourGuide → partner linkSource: Sydney Opera House: The spherical solution
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