Why is the Sydney Opera House heritage?

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Tags

1. #together
2. #creativity
3. #house
4. #according
5. #unparalleled
6. #great
7. #strands
8. #sydney
9. #unesco
10. #construction
11. #heritage
12. #architectural
13. #world
14. #innovation
15. #based
16. #brings
17. #structural
18. #opera
19. #century
20. #significance
21. #design
22. #multiple
23. #stated