TRACK is a set of yellow ceramic objects-as-walking-routes that are placed on walls and strips in front and behind residential buildings and shop windows. The objects have different shapes and sizes and a bright yellow color. Together, they form a visible trace: a walking route. Some residents and shopkeepers designed a yellow ceramic object themselves, which is included in the walk. A few objects contain texts, inspired by scientific knowledge about plants, micro-organisms and trees. The texts provide directions for a short mental or physical walk.