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Biosphere 2

Tower. Biosphere 2, Arizona, USA () Tower. Biosphere 2, Arizona, USA () Tower and dome. Biosphere 2, Arizona, USA () View of the complex. Biosphere 2, Arizona, USA () View of the complex. Biosphere 2, Arizona, USA () Glass enclosure seen from inside. Biosphere 2, Arizona, USA () Glass enclusure and tower. Biosphere 2, Arizona, USA () Ecosystem enclosed. Biosphere 2, Arizona, USA () Dome and clouds. Biosphere 2, Arizona, USA () Metallic structure. Biosphere 2, Arizona, USA ()

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