Paris' constant drone of traffic noise can be wearying for the footsore tourist, but if you are near to the Opera Bastille you can make an instant escape by walking up a few steps on to the Promenade Plantee.
This little heaven away from the roar of the big city is actually a reclaimed elevated railway line, 4.5km long and planted with thousands of gorgeous flowers and shrubs. Instant relaxation guaranteed, instant slowing down of pulse, and another - somewhat secret - addition to this wonderful city's delights.

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