Following the success of an international architectural competition the design concept moved away from the anachronistic line of formal gates across the important avenue to Buckingham Palace known as Constitution Hill and towards a more inclusive concept revolving around a more dynamic space for visitors to gather whilst respecting the pageantry and ceremony of the route of HM The Queen, the royal family and military events such as The Changing of the Guard. The design includes four tall Portland stone piers topped with bronze urns that are lit on ceremonial occasions. Located close by in the park is an open stone pavilion, in the form of an Indian ‘Chattri’. The monument recognises the sacrifice of 5 million men and women of the commonwealth who served in the two world wars of the twentieth century.