People wanted to have a place where they could go to remember the fallen. So little memorials were placed in churchyards and elsewhere all over the country.
An unknown soldier was buried in a tomb in Westminster Abbey, London as a symbol of all those who were lost and whose bodies were never found.
But they also needed somewhere that the troops could march past. So a large 'empty tomb' a cenotaph was built in the middle of the street called Whitehall near the Houses of Parliament in London.