This 1950 aerial shot nicely illustrates the glacis of the walls and why it was such an imposing fortification from the land or from the sea. Image courtesy of Anthony Ellery. Note that you can still see the foundations for the old Plymouth Pier top left and on the Hoe there is the old barrage balloon hanger from WW2 behind the memorial. Note also that the memorial only has the WW1 section on it. The WW2 names were yet to be added when this photograph was taken.