On 20th October, 1973 Sydney Opera House was opened by Queen Elizabeth II Β
In 1956, there were 233 entries for the worldwide design competition for the Opera House.Β Denmark's JΓΈrn Utzon was declared the winner and awarded β€5000 for his creation.
In 2007, the Sydney Opera House was included on the UNESCO World Heritage List.
Seawater drawn straight from the harbor is used to cool the Sydney Opera House.Β
Annually, about 10.9 million people visit the Opera House.
Paul Robeson was the first person to perform at Sydney Opera House.Β