When people talk about the mosaic, or suggest a project of manufacturing mosaic panel, usually raises the question of its interaction with the interior, however, in our practice, there are complex projects that did not have an interior, and had to create a harmonious balance with the mosaic architecture of a building, district, and most unusual natural environment, taking into account the change of seasons. An example of such a project - a mosaic made ​​by us to the fountain on the roof of the penthouse of one of the houses in Moscow. Realizing the complexity and responsibility taken our work, we have carried out this difficult and unusual object.