Thiepval Memorial on the Somme is one of the largest memorials to Britain's war dead. There are 600 British and French graves and the names of 72,000 British soldiers are carved into the stone.

Take a solemn flight of discovery with this drone footage of iconic WWI memorials, including the Douaumont Ossuary in France, the Interallied Memorial of Liège in Belgium, the Peace Tower and National ...