This intervention responds to the architectural attributes of the Cabañas Cultural Institute. The single story building contains 23 patios that are distributed within; wich ones, once inside the construction, are the only conexion to the exterior and the olny place where one can admire the sky. The sculpture is a negative model in a scale of 1:20. It means, the 23 patios are the ones that are extruded, and being covered by mirrors, reflect the sky.