Bernard Garo and Pierre-André Gétaz – M₂O

This work, stretched under the bridge and between its piers can be seen from afar. Imposing yet ethereal, the ring, 25 metres across, masks a weight of four tonnes. Its vibrant surface is composed of tiny squares in different shades of blue; by reflecting the light, they evoke the shimmering surface of water and conjure that of the River Flon that flows invisibly underground below the same bridge.