King William Street, Adelaide
King William Street is the part of a major arterial road that traverses the CBD and centre of Adelaide, continuing as King William Road to the north of North Terrace and south of Greenhill Road; between South Terrace and Greenhill Road it is called Peacock Road. At approximately 40 metres (130 ft) wide, King William Street is the widest main street of all the Australian State capital cities. Named after King William IV in 1837, it is historically considered one of Adelaide's high streets, for its focal point of businesses, shops and other prominent establishments. The Glenelg tram line runs along the middle of the street through the city centre.