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The Observational Vaults of the Machine: Koln Cathedral and the Rhine
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The Observational Vaults of the Machine: Koln Cathedral, inside the spire
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The Observational Vaults of the Machine: Koln Catherdral, bells
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The Observational Vaults of the Machine: Koln Catherdral, Stained Glass
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The Observational Vaults of the Machine: Koln Catherdral - Wings from above...