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The Sydney Opera House is an iconic structure located in Sydney, New South Wales, Australia. Completed in 1973 after 14 years of construction, it was designed by Danish architect Jørn Utzon. Its unique design, resembling a ship at full sail or a series of shells, was the winner of an international design competition. The Sydney Opera House was listed as a UNESCO World Heritage Site in 2007, acknowledging its "outstanding universal value".

The building houses multiple performance venues, which together host well over 1,500 performances annually, attended by more than 1.2 million people. These venues include the Concert Hall, the Joan Sutherland Theatre, the Drama Theatre, the Playhouse, and the Studio. The Concert Hall is the largest of these venues, boasting a seating capacity of 2,679. The Joan Sutherland Theatre, named after the famed Australian soprano, is primarily used for opera performances.

The Opera House has a significant economic impact, generating an estimated $775 million annually for the New South Wales economy. In addition, the site has around 8.2 million visitors each year, making it one of Australia's biggest tourist attractions. It is also a focal point of Sydney's New Year's Eve celebrations, with a spectacular fireworks display that attracts global attention.

Despite initial controversy and cost overruns, the Sydney Opera House has since become a symbol of both Sydney and Australia, and it is one of the most famous and recognizable buildings in the world.