Its hard question. But not all stadiums. Stadion Radomiaka is Diffrent, also Stal Rzeszów stadium, Stal Stalowa Wola stadium from IIIliga/4 division and more
Because stadium is literally rectangular building with roof-covered four stands? :D they aren't that similar. Most of them are smaller size, builded by local community - that's why they are similar capacity - and as such aren't great potential for architecture gems. Still looking great in my opinion.
