its home. Design and construction Istanbul Atatürk Olympic Stadium was originally conceived for the city's 2008 Olympic Games bid. The stadium's two steel roofs (weighing 2,800 t and 1,300 t) were produced by Tekfen's Steel Structure Fabrication Plant in Ceyhan, Adana. The west roof, designed in the form of a crescent and principally composed of a 1,000 t main beam called mega-truss, is supported by two reinforced concrete shafts with 196 m span. With its 134 entrances and 148 exit gates, the Olympic Stadium allows 80,000 spectators to evacuate within 7.5 minutes, in case of an emergency. Two annex fields (for warm up / training purposes) are connected directly to the Olympic Stadium with a tunnel. The Olympic Stadium's technical infrastructure and design ensure optimal visibility from all stands; a homogeneous sound level (102 decibels) with modern speaker systems, and a 1,400 lux illumination covering all areas of the stadium. A 42,200 m2 commercial center is situated under the west roof, with a front facade length of 450 m and a total of 6 floors (3 floors below ground level.) Renovations and events 2005 UEFA Champions League Final From 2002 to 2005, the stadium had a capacity of 80,597 (all-seater). This was later reduced to 76,092 (all-seater) by removing the seats from where it was not possible to see the entire pitch, prior to the 2005 UEFA Champions League Final, the final match of Europe's primary club football competition in the 2004–05 season. The showpiece event (dubbed "The Miracle of Istanbul") was contested between Liverpool F.C. of England and A.C. Milan of Italy on 25 May 2005. UEFA Euro 2016 plans The stadium was part of the Turkish UEFA Euro 2016 bid. To meet all requirements of UEFA for being able to organise the championship, the authorities planned to take major reconstruction works on this stadium. It was planned to increase the stadium's capacity to over 90,000 spectators and making it to the world's largest stadium with every seat under cover. To increase the net and gross capacity to 81,106 and 94,555 respectively, the pitch would have been lowered by 2.15 metres. In order to provide better convenience for the VIP guests and the media, all existing hospitality areas at levels 3 and 4 would have been extended. Furthermore, 12 new boxes were planned to be added to the west stand and 32 to the east stand in order to