The Hall of Silence, located in the centre of the building, is striking in its starkness, and has a powerful effect on visitors.
The room is circular and Rayner Hoff's sculpture Sacrifice stands in its centre. The floor is Ulam white marble, and there is a bronze “eternal flame” that flares out from the sculpture. The ceiling curves up toward the carved marble banister that defines the Well of Contemplation, a large circular opening in the floor of the level above. This opening provides the only natural lighting for the Hall of Silence and has the effect of focusing that light onto the central sculpture. The cornice is a marble frieze in which are carved the names of the great battles fought by Australians forces during the war. According to Dellit, the names “complete the message which the group of sculpture symbolising Sacrifice is intended to deliver”