Sydney is the capital city of the south-eastern Australian state of New South Wales, situated on Port Jackson, a waterway including Sydney Harbour, Middle Harbour, North Harbour, and the Lane Cove and Parramatta Rivers. With a population of over four million, Sydney, the "Harbour City", is the largest, oldest and most cosmopolitan city in Australia. Sydney holds a reputation worldwide as one of the worlds most beautiful and liveable cities, brimming with historical associations and globally influential in the realms of culture, art, fashion, cuisine and design. The city is also home to many unique architectural styles, including the Sydney Opera House and the Sydney Harbour Bridge, two of the most iconic structures on the planet.