Designed by Sir Edwin Lutyens, the memorial was built between 1928 and 1932 and is the largest Commonwealth Memorial to the Missing in the world. It was inaugurated by the
Prince of Wales (later
King Edward VIII) in the presence of
Albert Lebrun, the
President of France, on 1 August 1932. It was the last of the special memorials in Flanders and Picardy to be unveiled. The memorial dominates the rural scene and has 16 brick
piers, faced with
Portland stone. It was originally built using French bricks from
Lille but was refaced in 1973 with
Accrington brick. The main arch is aligned east to west. The memorial is high above the level of its podium, which to the west is above the level of the adjoining cemetery. It has foundations thick, which were required because of extensive wartime tunnelling beneath the structure. It is a complex form of
memorial arch, comprising interlocking
arches of four sizes. Each side of the main arch is pierced by a smaller arch, orientated at a
right angle to the main arch. Each side of each of these smaller arches is then pierced by a still smaller arch and so on. The
keystone of each smaller arch is at the level of the
spring of the larger arch that it pierces; each of these levels is marked by a stone
cornice. This design results in 16 piers, having 64 stone-panelled sides. According to the architectural historian Stephen Games, the memorial is composed of two intersecting triumphal arches, each with a larger central arch and two smaller subsidiary arches, the arches on the east–west facades being taller than those on the north–south, all raised up from what is loosely a square four-by-four tartan grid plan. The main arch is surmounted by a tower. ==Inscriptions==