The HMAS Sydney Memorial honours the 645 crew members who lost their lives in a sea battle in 1941, the Dome of Souls is formed from 645 stainless steel gulls, birds that traditionally personify souls of lost sailors, the filigree canopy is supported by seven pillars, representing the seven states and territories of Australia, the 19-metre tall Stele, right, represents the warship's prow, Geraldton, Mid West region, Western Australia