The Sydney Cenotaph is located in Martin Place and is one of the oldest World War I war monuments in the Central Business District. On the southern side, facing the General Post Office it states "To Our Glorious Dead" and on the Northern side, facing Challis House it states "Lest We Forget." It is used on a regular basis for ceremonies, far more than the Australian War Memorial in Canberra. The Cenotaph is the centre for the Anzac and Armistice Day dawn service ceremonies held in Sydney, regularly drawing thousands of attendees.
Martin Place, adjacent to the General Post Office (GPO), was the location in which the majority of Sydney's soldiers enlisted into the Australian Army for World War I. The Sydney GPO was also the main conduit of news information during World War I. On 8 March 1926, the Premier of NSW, Jack Lang, indicated that the State Government would provide a sum of ten thousand pounds for the commissioning of Sir Bertram Mackennal to undertake the project of the design and erection of a Cenotaph in Martin Place, to be completed by 25 April 1929. It was completed in 1927. Made of granite, it weighs 20 tonnes.