TECHNICAL SPECIFICATIONS Owner: Banca Intesa San PaoloArchitect: Renzo PianoGen. Contractor: Torre S.c.ar.lDescription: the supply, delivery and erection of the steelwork for the six steel mega columns with a total weight of 4,500 t, built to a height of 175 m. This columns passess a cross section characterized by two curved shells, which tapper in height, and enclose a core of steel and concrete.