Opera Australia is the principal opera company in Australia. Based in Sydney, New South Wales, its performance season at the Sydney Opera House accompanied by the Opera Australia Orchestra runs for approximately eight months of the year, with the remainder of its time spent at the Arts Centre Melbourne, where it is accompanied by Orchestra Victoria. In 2004, the company gave 226 performances in its subscription seasons in Sydney and Melbourne, Victoria, attended by more than 294,000 people.

The Sydney Opera House is a multi-venue performing arts centre in Sydney, Australia. Located on the foreshore of Sydney Harbour, it is widely regarded as one of the world's most famous and distinctive buildings and a masterpiece of 20th-century architecture.