Each module is an upgrade unit habitable wheel by Herman Potočnik Noordung. The individual modules are assembled from a 3,6,9 or 12 levels and form towers, which are strung another after the outer ring of circles. Among themselves they are associated with the closed communication corridors in which without gravity point status allows us to "float". Since each module may be composed of several levels, the people can choose their own way of life. They have module generation and within an already selected module they can choose another module of the urban or suburban life; Residents have a high level of ecological awareness and know that the ancestors destroyed Earth to the stage when there was no other solution than to leave it and allow her to revitalizate. Now are they learning about their “earthly” errors, faced with the facts of their past actions and trying to sketch a new way by which they learn to walk. The ecosystem on Earth is regulated by it self, in a natural way.