Sydney Opera House

Where it sits. The Opera House occupies Bennelong Point, a low sandstone spur pushing north into Sydney Harbour beside Circular Quay, with the Harbour Bridge to the west and the Royal Botanic Garden immediately east. The site was a tram depot before it was a concert hall, and before that Fort Macquarie; the Gadigal people of the Eora nation knew the point as Tubowgule. Its position is inseparable from the design — the building is surrounded by water on three sides and read from the ferries, so Jørn Utzon treated it as sculpture in the round rather than as a facade with a back.

The competition and the design. New South Wales announced an open international competition in September 1955. Two hundred and thirty-three entries arrived from 32 countries, and on 29 January 1957 the jury named Utzon, a 38-year-old Dane who had never built anything at this scale. The Finnish-American architect Eero Saarinen, arriving late to the jury, is credited with pulling his drawings back out of the discarded pile. The winning scheme was closer to a set of gestures than a buildable structure, and the shells resisted engineering for four years. The solution came in mid-1961: rather than free-form curves, every shell would be cut as a section from the surface of a single sphere of 75.2-metre radius, which meant the ribs could be cast from a small family of repeated moulds. That geometric insight is the reason the building exists.

Construction, cost and the resignation. Work began on 1 March 1959, before the design was resolved — a political decision that shaped everything after it. The project ran in four stages: podium, shells, interiors, fit-out. The 1957 estimate was £3.5 million with completion promised for Australia Day 1963. The final figure was A$102 million and the opening was 20 October 1973, funded largely by a state lottery run specifically for the purpose. Utzon resigned on 28 February 1966 after a public collapse of relations with the state works minister Davis Hughes over payments and control; he left Australia and never came back, and never saw the finished building. Peter Hall took over the interiors in April 1966 and made the decision to separate the concert and opera functions into two halls. UNESCO inscribed the building as a World Heritage Site in 2007, one of very few twentieth-century works so listed and, unusually, during its architect's lifetime.

The details people miss. The roof carries 1,056,006 tiles in two finishes — glossy white and matte cream — laid in a chevron pattern across 2,194 precast concrete sections; they were developed over three years by the Swedish firm Höganäs, and the mixed finish is why the shells read as luminous rather than flat in overcast light. The building is not one venue but seven: the Concert Hall seats 2,679, the Joan Sutherland Theatre 1,507, the Drama Theatre 544, the Playhouse 398, and the Studio up to 400. The Concert Hall's grand organ, completed in 1979, is the largest mechanical tracker-action instrument in the world, with over 10,000 pipes.

On screen. The Opera House is among the most frequently used establishing shots in cinema — one wide plate and an audience anywhere on earth knows the city. Pixar's Finding Nemo (2003) put its entire second act in Sydney Harbour with the shells in view, and made 42 Wallaby Way, Sydney, a real search term. Mission: Impossible 2 (2000) was set in Sydney and shot across the harbour city, with the fortified Bare Island at La Perouse doubling for the Biocyte laboratory. The building itself has been the subject of documentary work, most notably The Edge of the Possible (1998), which traced Utzon's departure and the long argument over the interiors. Vivid Sydney, held each winter, projects animated artwork directly onto the sails, and the resulting footage has become its own visual shorthand for the city.

Getting there and timing. Circular Quay station and the ferry wharves are a five-minute walk; there is limited paid parking beneath the forecourt. Guided tours run daily in several languages, and backstage tours start early in the morning before rehearsals. The best exterior photographs come from Mrs Macquarie's Point in the Botanic Garden, which lines the shells up against the bridge, and from any Manly ferry — the cheapest harbour cruise in the world. Spring and autumn give the most reliable weather. New Year's Eve and Vivid draw enormous crowds and require planning; a weekday morning in March, by contrast, can find the forecourt almost empty.