a black sinusoidal structure. That the lower quarter of its height sinks into the desert sand. the structure is built with very long tubes. the spaces between the tubulars are wired glass and opaque panels. The interior spaces host many human activities. tubulars are also needed to transport water and food that can be seen from the outside. some parts between the tubulars are the background is deserted. The tubulars are linked together with other transversal tubulars. the point of convergence of the longitudinal tubulars is a very distant point. There are some trucks that pass through tubulars.