/ sydney , -

Sydney is the most populous city in Australia, with a metropolitan area population of approximately 4.28 million. Sydney is situated on Australia's south-east coast. The city is built around Port Jackson, which includes Sydney Harbour, leading to the city's nickname, "the Harbour City". It is noted for the Sydney Opera House and the Harbour Bridge, and its beaches. Sydney is one of the most multicultural cities in the world, which reflects its role as a major destination for immigrants to Australia. Sydney is Australia’s most expensive city, and the 15th most expensive in the world.