To Vikings, stadium roof has clear advantages
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October 11, 2009: Twins bid farewell to the Metrodome – Society for American Baseball Research
Hubert H. Humphrey Metrodome - Wikipedia
Eagles-Patriots Super Bowl venue is an otherworldly crystal palace
The Moment the Metrodome Roof Collapsed
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The Moment the Metrodome Roof Collapsed
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Hubert H. Humphrey Metrodome, American Football Database
Vikings Stadium Archives - Wry Wing PoliticsWry Wing Politics