Federation Square is a mixed-use development in the inner city of Melbourne, covering an area of 3.2 hectares and centred on two major public spaces: open squares (St. Paul's Court and The Square) and one covered (The Atrium), built on top of a concrete deck above busy railway lines. It is located at intersection between Flinders Street and Swanston Street/St Kilda Road in Melbourne's Central Business District, adjacent to Melbourne's busiest railway station.