At the centre of the Australian War Memorial lies the Hall of Memory. A quiet, poignant tribute to those who have given their lives during times of conflict, this touching monument is home to the Tomb of The Unknown Australian Soldier, and can only be reached by passing the names of the more than 102,000 who have made the ultimate sacrifice for Australia. A focal point of the Hall is its domed ceiling, adorned with an intricate mosaic design rich with symbolism, from the wreath of wattle to indicate the fallen, to the continuous, golden chain around its edge, representing the seamless journey from earthly life to a spiritual domain. Many of these motifs and sentiments are echoed in the 2017 $2 'Lest We Forget' coin's reverse design, which deftly incorporates the dome's hues of blue, green and yellow.