About Sydney: Sydney is the capital city of New South Wales. The city is wrapped around the beautiful and iconic Sydney Harbour. This is one of Australia's oldest, biggest and most diverse cities. From the center of downtown out to the suburbs, there is an endless array of charming and interesting things to see. The dazzling sites of Darling Harbour and the Sydney Harbour Bridge complement each other. The historic city center is a fascinating place to spend the day. The many beaches surrounding the city and Blue Mountains National Park—a World Heritage Site—are great places to either relax or be active.