Spiral staircase (Unsplash).jpg
chuttersnap [https://unsplash.com/@chuttersnap chuttersnap]
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Spiral staircase (Unsplash), Images from Unsplash (review needed), Staircases, Images from Unsplash, Gallery
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en
Spiral staircase (Unsplash), chuttersnap 2016-12-23
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螺旋階段
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スパイラル階段
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stairwell