Three years ago, in 2015, a group of teenagers were looking for a field to play football in the heart of Les Halles district, where urban mapping is optimally exploited and where there is little room for the game and sport. After a petition and two years of proceedings, the mayors of the first and second arrondissements called on street artist Romain Froquet to create a multi-sport playground in explosive colours, giving urban sport a central place in the city. Climbing plants, colourful lines, the teenagers’ initiative has made it possible to cross street-art, the practice of urban sport, which is now essential in a context of denser city centres, and the importance of regular sports practice.