I found this article on a dutch lifehacking blog.
On the article the writer says one time he was lost in Oslo, without map, iPhone or internet cafe around. And he needed the find his way to a museum. When looking up he noticed the wall of a house.
Painted all over the wall was the map of the surrounding area.
No problem finding your way then....
Maybe it is a nice way of painting. And it helps a lot of people...
[InfoGraphic] Van idee naar app
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