Designed by Danish architect Jørn Utzon, this World Heritage-listed building is Australia's most recognisable landmark. Visually referencing the billowing white sails of a seagoing yacht (but described by some local wags as more accurately resembling the sexual congress of turtles), it's a commanding presence on Circular Quay. The complex comprises five performance spaces where dance, concerts, opera and theatre are staged.
The best way to experience the building is to attend a performance, but you can also take a one-hour guided tour, conducted in a variety of languages. There's also a two-hour 'access all areas' backstage tour ($165), which departs at 7am and includes breakfast in the Green Room.