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Gutnix: Kranhäuser, Köln
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Gutnix: Robot building
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Gutnix: Atrium with elevator / Atrium mit Aufzug
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Gutnix: Water under the bridge
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Gutnix: Birch trees / Birken
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Gutnix: Köln Messe
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Gutnix: Hotel 25 Hours
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Gutnix: Stairs, moving and still
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Gutnix: Moving lines