This seven floors staircase has been designed as a poetic and sculptural element within a 1% art program. It is situated in the heart of the « Perspective » project in Bordeaux, a building by the architects Nicolas Laisné and Dimitri Roussel. This staircase is a contemplative link between the inside and the outside. A curved dashed wall undulates around the stairs acting like a second skin. The vertical elements composing the structure are filtering the light and let the visitors see through the Garonne River. This graphic game of shadows and cinetic effects creates a constantly moving stairs, reflecting Escher’s drawings.