On occasion of Seville's Universal Expo, Italy was rapresented by a large building designed by architects Gae Aulenti and Pierluigi Spadolini. The interiors were arranged in a large central gallery as hight as the building itself, and several smaller exhibition rooms on various levels at both sides of the central gallery. In order to underlinee the double structure of the facade, lighting fixtures (Edge) with specific light distribution were placed near the front openings. The neat and sharp illumination of the voults recovered the perception of the inside counterfacades trought reflection. Sealed floodlights with halogen lamps directed at the glass surfaces of the "lumbreras" illuminated the interior and provoked light and shade effects on the "sails" above them. In nighttime the Palace looks as a big lantern. Staircase, passage ways are illuminated by fixtures equipped with low-voltage halogen lamps recessed in the false cieling. The high illumination level (300 lux) enabled the observer to perceive the building as a whole, as well as the arrangement into many floors, starting from the large gallery at ground level. The expositive rooms are illuminated by orientable lighting fixtures equipped with low-voltage halogen lamps recessed in the false cieling or mounted on tracks. The choise of the light beam angle (from 8 to 38 degrees), the position and the orientation of the lamps underlined the characteristic of every exhibit avoiding any dazzling or glaring phenomena. (FLARE, 7, 1992, pp.100-109).