The complex geometry of this work is the product of decades of research undertaken at Studio Olafur Eliasson. The asymmetry of the polyhedron invites viewers to move around and examine it from all angles, stimulating their active engagement. The work’s surfaces combine panes of green-tinted glass and pink iridescent color-effect-filter glass, a special material that reflects light of a single colour while allowing the remaining light (of the complementary colour) to pass through. Light shines out from the centre of the form to cast colourful shapes and shadows on the surrounding room.