The First World War Franco-British Memorial and the Thiepval Memorial to the Missing of the Somme is an imposing monument of brick and stone standing 45 m (148 ft) high. It is visible for several kilometres in every direction. It is the work of the architect Sir Edwin Lutyens. The sixteen pillars are engraved with the names of 73,367 British and Commonwealth soldiers who fell during the Battle of the Somme between July and November 1916 and who have no known grave.