In 1986 Franco-Algerian artist Mahjoub Ben Bella painted 12km of the Paris-Roubaix cobbles. It might be the longest piece of art in the world but there is little trace of the work today, except this photo via local newspaper La Voix du Nord.

In 1986 Franco-Algerian artist Mahjoub Ben Bella painted 12km of the Paris-Roubaix cobbles. It might be the longest piece of art in the world but there is little trace of the work today, except this photo via local newspaper La Voix du Nord.