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The Nilson Nelson Gymnasium is an indoor sporting arena used mostly for volleyball located in Brasília, Brazil, which is near the Estádio Nacional Mané Garrincha. Both are part of the Ayrton Senna Sports Complex.
Source: Wikipedia
The Brasília Planetarium Luiz Cruls, colloquially known as the Brasília Planetarium or the Planetarium of Brasília, is a planetarium located in Brasília, in the Federal District. Inaugurated on 15 March 1974, it was designed by architect Sérgio Bernandes using a Brutalist style.
Source: Wikipedia