I don’t remember the actual number anymore but there is like a handful of UK towns that lost no one in WWI. I think they are call the Blessed Towns” or something like that. In France I think there is one such town. In Germany don’t know!
I was young and visited Eton, there the dead are listed on the walls of the courtyard. The list seemed endless and they were all my age, 18, 19, 20. That experience slapped me in the face.
In 2014 someone arranged to make nearly 900,000 ceramic poppies (one for each man of the British Empire killed in the war) and install them around the Tower of London.
An article about that process, with some photos, is here: