A landscape composed only of lines: curves, straight, oblique, wavy or twisted … Here is the experiment done in a class of 6th grade, to verify the visual power of the lines, which are able to make us evoke skies, seas, fields, waves and mountains. The landscape of a picture was drawn with colored felt pens on tracing paper, only with lines. Every student has interpreted the landscape quite freely, but following the main shapes and colors.