Spodek Arena — Piotr Drabik from Poland · CC BY 2.0 · source

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Spodek Arena

Спортивный зал «Сподек» (Катовице)

PolandКатовице1964–1971Public buildingsFunctionalism

A multifunctional sports and entertainment arena (1964–1971, architects Maciej Gintowt and Maciej Krasiński, engineer Wacław Zalewski). It is recognizable for its "flying saucer" shape with a cable-stayed dome roof suspended on steel cables. Opened on 9 May 1971, it is an icon of Polish modernism.

Многофункциональный спортивно-зрелищный зал (1964–1971, арх. Мацей Гинтовт и Мацей Красиньский, инж. Вацлав Залевский). Узнаваем по форме «летающей тарелки» с вантовой крышей-куполом на стальных тросах. Открыт 9 мая 1971 года, икона польского модернизма.

Construction cost

800 000 000 злотых, 1971 prices

Two independent sources cite the final construction cost as approximately 800 million old Polish zloty (PLZ, pre-1995 redenomination), compared to an initial budget of 200 million zloty. The overrun was caused by an 18-month construction halt due to underground coal deposits threatening structural stability. The figure appears in the English Wikipedia infobox (~800 million zł) and is confirmed by whitemad.pl's 50th-anniversary article on the Spodek ("200 million PLN was earmarked for the investment, but the final cost was around 800 million PLN"). Both sources use the pre-redenomination zloty amounts.