City of Sydney was created in 1842.
City of Sydney Library was created in 1909.
Sydney City Soccer Club was created in 1939.
The closest capital city to Sydney is Canberra.
Sydney was created in 1788.
Sydney Writers' Festival was created in 1997.
Sydney is already a city.
If your question is "In which city is the Sydney Opera House?" I guess the answer is Sydney, Australia...
No. Sydney is a city in Australia. Copenhagen is the capital city of Denmark.
Sydney Aquarium was created in 1988.
University of Sydney was created in 1850.
Sydney Sixers was created in 2011.
The Sydney Mail was created in 1860.