Stadio Olimpico 

The Stadio Olimpico of Rome was built in 1936* and has a capacity of 84.252. It was the site of the 1960 Summer Olympics. It is located on the Foro Italico.
Designer: Antonio Nervi and Pier Luigi Nervi

The Olympic Stadium of Rome is characterized by a continuous ring of tiers. They gently follow the course of the athletics track and discretely rise over 13 meters (43feet) only. It is dominated by the parabolic profile of 80 consecutive rows and the immense roof structure. The roof is supported by 12 concrete pillars and a ring of rectangular supporting beams characterized by tri-angular sections. In between a membrane of semitransparent Teflon is inserted. It floats on a secondary structure for 45 meters (147 feet) towards the playing field.

* with alterations 1957, 1990(roof)