Sydney Opera House in Sydney, opened in October 1973, is one of Australia's best known landmarks. The design by Danish architect Jorn Utzon was agreed in January after a competition involving 233 entries, but it took 14 years to build. The radial sail-like roofs were said to have been inspired by sea shells. Inside there were originally four theatres - the Concert Hall, the Opera Theatre, the Drama Theatre and the Playhouse.
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