Sydney (pron.: /sɪdni/) is the state capital of New South Wales and the most populous city in Australia. It is on Australia's south-east coast, on the Tasman Sea. In June 2010 the greater metropolitan area had an approximate population of 4.6 million people. Inhabitants of Sydney are called Sydneysiders, comprising a cosmopolitan and international population.
The site of the first British colony in Australia, Sydney was established in 1788 at Sydney Cove by Arthur Phillip, commodore of the First Fleet, as a penal colony. The city is built on hills surrounding Port Jackson which is commonly known as Sydney Harbour, where the iconic Sydney Opera House and the Harbour Bridge feature prominently. The hinterland of the metropolitan area is surrounded by national parks, and the coastal regions feature many bays, rivers, inlets and beaches including the famous Bondi Beach and Manly Beach. Within the city are many notable parks, including Hyde Park and the Royal Botanic Gardens.
Under the directions of Dr J.J.C. Bradfield of the NSW Department of Public Works, the bridge was designed and built by British firm Dorman Long and Co Ltd of Middlesbrough and opened in 1932. The bridge's design was influenced by the Hell Gate Bridge in New York. It was the world's widest long-span bridge, at 48.8 meters (160 feet) wide, until construction of the new Port Mann Bridge in Vancouver. It is also the fifth longest spanning-arch bridge in the world, and it is the tallest steel arch bridge, measuring 134 metres (440 ft) from top to water level. Until 1967 the Harbour Bridge was Sydney's tallest structure.