Cross-art: de jolis exemples..

https://www.huffingtonpost.fr/2019/02/21/ce-coureur-a-marche-34-km-pour-dessiner-la-france-a-paris_a_23675546/?ncid=other_facebook_eucluwzme5k&fbclid=IwAR3_bgWkkhEXMKw6i4tT5gORg5IclgiOZg1kbSDO8mcg4mpTO6mcDPQXBfI