Sydney Opera House
Jørn Utzon won the competition for it in 1957 and resigned in 1966, worn down by disputes with the state government. He was never invited back, never returned to Australia, and died in 2008 without seeing the finished building. The interiors were completed by others and are not his, which is why they surprise people who know the roofline.
Sydney Harbour Bridge
The steel arch of 1932, known locally as the coathanger, carrying road, rail, cycles and pedestrians. It was so expensive that the state was still paying it off decades later. The southern pylons contain a museum and a lookout; the pylons themselves are decorative stone cladding and carry no structural load at all.
The Rocks
The sandstone quarter beside the bridge where the convict settlement actually began, all narrow lanes and cut-stone warehouses. It was slated for demolition in the 1970s and saved by construction unions imposing green bans, refusing to do the work. The oldest surviving European district in Australia exists because builders declined to knock it down.
Sydney Harbour
Not a bay but a drowned river valley, flooded when sea levels rose after the last glaciation, which is why it branches so intricately and runs so deep. The shape is why the colony survived: Phillip needed anchorage and fresh water, and this had both where Botany Bay had neither.
Hyde Park Barracks
A convict barracks of 1819 designed by Francis Greenway, himself transported for forgery, who became the colony's architect. A convicted forger designing the government's public buildings is the early colony in one fact. The building later held immigrant women and then a court, and its floor cavities preserved thousands of objects dropped by inhabitants.
Royal Botanic Garden
Gardens running along the harbour beside the Opera House, on the site of the colony's first attempted farm. That farm largely failed: the soil was poor and the fleet had brought seed suited to another hemisphere. The colony came close to starving in its first years, on ground now planted as ornamental lawn.
Bondi Beach
The most photographed beach in the country, with a rock pool at the southern end and a coastal walk to Coogee. It is also where surf lifesaving as an organised movement took shape in the early twentieth century. The flags are not decorative and swimming outside them is how most rescues start.
Queen Victoria Building
An 1898 sandstone market hall covering a city block, converted to offices, nearly demolished in the twentieth century, then restored as a shopping arcade. Its scale was justified as make-work during a depression. The glass dome and tiled floors survived a period when Sydney was demolishing Victorian buildings at speed.
Cockatoo Island
A harbour island that was a convict penal site, then a reformatory, then one of Australia's largest shipyards, with the industrial machinery still standing. You can camp on it. Layers of institutional use are legible on the same small piece of rock, which is unusual and mostly unvisited.