The Green Belt comes from the city’s old defense systems. It corresponds to the grip of the old glacis that extend beyond the last fortifications by encircling the city center and by skirting the railway track south of the Neudorf, at the articulation between the central districts and their periphery. For his centennial, photographer Stéphane Spach explored and documented the Green Belt’s natural spaces, buildings and road networks. The exhibition retraces this collection work, as a walk to discover surprising landscapes.