The Breda Pavilions are a series of pavilions built by architect Luciano Baldessari with construction company A. Morganti on behalf of the Ernesto Breda Company at various editions of the International Fair of Milan (1951-1956). In the 1951 version, Baldessari had to expose a giant rotary kiln for the manufacture of concrete (length 61 m, diameter 2.00 to 2.25 m, weight 2,020 tons). Baldessari designed a "promenade métallurgique "which, suspended in air, brings the audience directly into contact with the machine: a ramp made ​​of high-strength concrete which rose up to the level of the oven, puncturing through two walls in reinforced concrete which remained from the previous set-up. Above the catwalk unfolded a ribbon in reinforced concrete with a free span length of 29.70 meters, anchored to the ground at only two points.