This project was realized during an hackathon at Sup de Création. We were in partnership with the Wild Code School and the BNF. The goal was to create a digital experience before, during and after the exhibition on Nadar. We decided to gamify the experience by creating a course with missions to accomplish in Paris in connection with Nadar's life, before the exhibition. The more the user completes the missions, the more his experience at the exhibition will be complete.