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File photo of an aerial shot showing Arena Fonte Nova stadium in Salvador

An aerial shot shows Arena Fonte Nova stadium in Salvador, in the state of Bahia, northern Brazil, in this March 28, 2014 file photo. REUTERS/Valter Pontes/Files (BRAZIL - Tags: SPORT SOCCER WORLD CUP)

Impressive photos of World Cup stadium construction

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A tour of all twelve stadiums that will be used during the tournament in Brazil.