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jgokoepke: Double helix in Reichstag dome
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jgokoepke: Entering the Dome of Reichstag
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jgokoepke: Spiral staircase Leipzig fair
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jgokoepke: Spiral staircase Leipzig fair
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jgokoepke: Spiral staircase Bamberg
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jgokoepke: Scala Bramante Vatican museum
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jgokoepke: Scala Simonetti in Vatican museum
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jgokoepke: Scala Bramante Vatican museum above
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jgokoepke: Scala Bramante Vatican museum
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jgokoepke: Spiral staircase in university library Heidelberg
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jgokoepke: Spiral staircase in university library Heidelberg
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jgokoepke: Double helix
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jgokoepke: Double helix
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jgokoepke: Double helix
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jgokoepke: Polygonal staircase of the Fifties
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jgokoepke: Spiral staircase
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jgokoepke: Spiral staircase