impression of wavy-like shape. The roof forms a cohesive whole over stands I, II, and III. Part of the roof over the stand no. II is a movable structure, designed to ensure proper illumination of grass on some part of the pitch. Cubature of the stadium is 1,300,000 m² and total area is 250,000 m². The original architectural concept of stadium modernization from 2002, was finally replaced by concept designed in 2008. Construction work based on this concept took place in years 2008–2012. Work on the stands no. I and III started in October 2008 and was completed in September 2010. New model of folding seats was installed on all four stands. They are wider than previous models, so the capacity of the stadium was reduced to 41,609, but in 2012 it was increased to the current capacity, 43,269. During reconstruction it was decided to build steeper stands in order to promote spectator interaction with the players. However, a consequence of this solution is also poor grass growth on the football pitch because of sunlight hardly getting through. This makes it necessary for turf to be exchanged a few times a year. It is hoped that the frequency of replacement will drop after the field rehabilitation carried out in August/September 2011. Stands characteristic Stand no. I (length - 136.13 m / width - 58.64 m) This is the main stand on the stadium. Facilities under the stands are designed for players (locker rooms, saunas, massage rooms etc.), press and special guests. Under the stand no. I there is also an underground parking for cars and buses The remaining storeys are dedicated for players, referees, fans and the press. Moreover, there are conference rooms, offices, storage and technical rooms located under the stand. Training grounds are located behind this stand. Stand no. II - known as Kocioł (The Cauldron) (length - 128.73 m / width - 48.35 m) Stand no. II is located on the side of the historical fortification structure named Fort VIII Grolman. The stand is the only three-level stand on the stadium dedicated for spectators. Some rooms located in south-west corner of stand no. II are reserved for a future hotel complex. There are the most fanatic fans of Lech Poznań. Stand no. III (length - 136.13 m / width - 58.64 m) East stand of the stadium is located on the side of Bułgarska street. This is