Post office employees work on a 900 square meters farm garden on the rooftop of their postal sorting center, as part of a project by Facteur Graine (Seed Postman) association to transform a city rooftop as a vegetable garden to grow fruits, vegetables, aromatic and medicinal plants, with also chickens and bees in Paris, France, September 22, 2017. The slogan reads "to grow vegetables on the rooftop of the post office is to grow dreams." Picture taken September 22, 2017. REUTERS/Charles Platiau