I looked to all the different bells and after a better look I think it's Harebell (Campanula rotundifolia) I think it that becauce of the leaves you see. And it's the most commom Campanula you see in Europe.
"After the first glass, you see things as you wish they were. After the second, you see things as they are not. Finally, you see things as they really are, which is the most horrible thing in the world."
--Oscar Wilde on Absinthe