Melbourne City Centre (officially known simply as Melbourne or colloquially as The City or CBD) is a locality (suburb) within the Greater Melbourne metropolitan area (the capital city of the state of Victoria, Australia). The Southgate Pedestrian Bridge built in 1989 over the Yarra River provides the main pedestrian link for thousands of workers and tourists between Flinders Street Station and the Southgate business and entertainment precinct. Melbourne City Centre's Hoddle Grid is the anchor of the city's Central Business District and it forms a major component of the city's Central Activities District. Its area consists of the original settlement is known as the Hoddle Grid - a one mile long (1.6 km) by half mile wide (0.80 km) grid of streets and lane ways, located on the northern bank of the Yarra River (approx 10 km upstream from the river estuary) and several adjoining areas stretching south along St Kilda Road. Major cultural icons include Federation Square, the State Library of Victoria, Melbourne Immigration Museum, and St Paul's Cathedral and Chinatown and the Queen Victoria Market.