A safe space for 8 to 16 year old children, where they can learn with body and mind, where they have the opportunity to express their creativity and free their imagination. Club de Niños y Niñas is an educational campus designed by CCA – Centro de Colaboración Arquitectónica, Bernardo Quinzaños and Ignacio Urquiza, in Chiconautla, Mexico. Here, extracurricular activities are held for young and very young people from marginalised neighbourhoods, where too fast urban growth has deprived entire communities of essential services and public spaces. The citadel, which has an extension of 3,500 square meters, is divided into three sections: an area with classrooms, library and administrative offices; a building for the arts, with exhibition spaces, laboratories, and areas for martial arts and performing arts; a third zone dedicated to sport with also a large gymnasium where to perform sporting and non-sporting events. These three parts are joined by a long covered corridor, which is the real "backbone" of the complex, with 24 sculptural arches representing the vertebrae of humans. It is here that the most precious moments of learning take place: those deriving from the free and informal exchange of ideas.