When I saw this hopscotch (la marelle in French) at first, I thought some kids had drawn it on the sidewalk. But when I looked closer I realized that it was an advertisement! The usual earth/sky is replaced with Paris/Cannes and there is a web address on the side of it. I managed to decipher it (teamdacr.com), but it leads to a forbidden site, so I’ll never know what they advertise (apparently a team of designers and writers, but it’s unclear).