Directly in front of Place de la Bourse, the Miroir d'Eau is a flat granite slab covering 3,450 square metres that holds just two centimetres of water. When conditions are right — calm air, morning light — the surface is so still that the Bourse's facade reflects in it perfectly, producing a doubling effect that is genuinely striking. It has become one of the most photographed urban installations in France, and with reason.
The Miroir cycles between a still reflective pool and a mist fountain — the mist phase cools the air noticeably in summer heat. The best time for photographs is early morning before visitors arrive and before the wind picks up. The square around it is pedestrianised and pleasant to walk at any hour.