Melbourne is the capital and most populous city in the state of Victoria, and the second most populous city in Australia. The Melbourne City Centre (also known as the "Central Business District" or "CBD") is the hub of the greater geographical area (or "metropolitan area") and the Census statistical division—of which "Melbourne" is the common name. As of June 2009, the greater geographical area had an approximate population of four million. In Southbank, the Melbourne Arts Precinct is site of Arts Centre Melbourne – a performing arts complex – and National Gallery of Victoria, displaying Australian and Indigenous art.