My thesis was focused on the design of an observatory through the different steps of prototyping. The planimetry is drawn studying the classical nordic culture geometries (the design location was Norway) and the following step was the form-finding. For the discretization and the tessellation was used the random system Voronoi because the calculation showed me which it would reduce the collapse risk due to the sliding effect between the blocks - also limited thanks to the bars inside the stones which number was a function of the areas of the surfaces of contact-.