"The London Underground map is one of the most recognisable in the world" Why? How is it more recognizable that, say, the Paris one? Or New York? EDIT: Since there are down votes, I will clarify my question do that we do not jump into underground nationalism: I was looking for unique features that make it recognizable. As I mentioned in a comment: the ~~Peru~~ (EDIT: Nepal) flag is unique, this recognizable for insta…
> more than