The city is dominated by the harbor,which people have described as one of the most spectacular in the world.
There are three thing that you must not-and indeed cannot-miss.
First,there is Sydney Harbor Bridge, one of the largest single-arch bridges in the world.
Second, the Sydney Opera House is a famous landmark that most visitors greatly anticipate seeing.
Finally, don't miss Fort Denison.
where prisoners were kept in solitary confinement
for days on a diet of bread and water