The sculpture garden on the west lawn of the Memorial contains a variety of outdoor monuments. The sidewalk through the garden is has bronze plaques commemorating various branches of service, specific units, and historical events. There are also a number of sculptures, including a gigantic figure of a World War II Australian soldier which was originally located in the Hall of Memory, before the Tomb of the Unknown Soldier was placed there. There is a gun turret from HMAS "Brisbane", a gun barrel from the heavy cruiser HMAS "Australia" and the barrel from the Amiens Gun – a huge railroad gun captured from the Germans during World War I.