However, the detailed drawings of the construction mechanisms, devised by Brunelleski, were executed by Ghiberti’s grandson (1451-1516). In the National library of Florence his album for the sketches is stored. These sketches, and “Opera Dale Duomo” archives, that contain the names of workers, job superintendents, date and information about the payment of works and deliveries, make it possible to imagine the way of building the cupola, as well as to appreciate Brunelleski’s role in this matter. Brunelleski used his mechanisms for the construction of two shells of cupola and lamp. Later the gold-plated sphere was established on the lamp by weight about one-and-a-half tons and a cross. Brunelleski was romantic by nature; he was captivated with thoughts about time, motion and so forth. He considerably outdistanced his contemporaries according to the concept of project, revolutionized Renaissance painting by the image of three-dimensional objects on the flat surface.