In my city there is a long big wall without anything above.
It is grey and sad.
This wall faces a park of game for children.
To give some brightness to this place, I imagine an immense graffiti, which would represent children and their toys according to the times.
Like that the playing young people in parks will know how played the children of their age there are decades.
Quite to the left, a little boy and a girl play ossicles, they illustrate 1950s.
A little more to the right, another boy draws on a magic screen, this one represents 1960s In the left of this one it finds a girl who concerns her younger brother knees, she amuses him with playmobil, quite two illustrate 1970s In the middle of the graffiti, a girl tries to end sound of cubic rubik, she represents 1980s.
Then 1990s come, two young boys play with cars telecommanded to the right of the girl, there is one red and a blue.
A little more to the right, a boy and a girl play everything them two their game boy advance, console which dates 2000s.
The colors of the most distant years would be more mat, then by going towards the right, colors would be more and more lively!
There is still space after 2010s, to be able to represent the new years.
Every drawing, every year is painted by another artist, the styles are any various, what gives some more of life to the work.
This graffiti would grow in time which passes.