For the urban sector, where residences, offices and commercial areas have been created, the highest tower of Sevilla designed by César Pelli finds its proper placement. Gonzato Contract designed the realization of all the walkways and stairs leading to the upper commercial floors. To fix the laminated tempered glasses, special “blade” posts made of stainless steel AISI 316 have been studied, together with spiders and round clamps. The stainless steel railings of the main stairs provide an adequate security for the important flow of people.