Mörby Centrum is the end station of the subway’s northern line in Stockholm. Gösta Wessel and Karin Ek were commissioned to design the entire space.  The blown-out mountain room was showered with concrete and plastered white. Spotlights were placed on one side of the tunnel (being the only source of light). The shadow that appeared on the irregular walls were painted grey. In the same way, the spotlight was placed at the other end of the room, and those shadows were painted pink. The result of this process was a room that appeared grey and white from one side and pink and white from the other. And when the viewer moves forward at the station both grey and pink shadow figures appear. Both the viewer’s position and movement change the visual experience of the room. Photo credits: © Tekla Severin (image 1+2)