The complex is built in a strategic area of the historic quarter EUR with a total building area of 55,000 square meter. The design concept is defined by three elements: the “Theca”, the “Cloud” and the “blade” of the Hotel. The “Theca”, longitudinally oriented, is the container, with a steel structure and double-glass façade, that encloses the Cloud. The “Cloud” represents the heart of the project. Its construction within the “box” of the Theca underlines the juxtaposition between a free spatial articulation, without rules, and a geometrically defined shape. Inside the Cloud there is: an auditorium for 1800 people, several snack points and support services to the auditorium. The Cloud is the distinctive architectural element of the project: the steel rib structure, provides an extraordinary visual effect, and is covered by a 15,000-square-meter transparent curtain. The 439-room hotel, the “blade”, has been thought of as an independent and autonomous structure. At the underground level of the complex a 600-place parking has been planned.