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| A sliced cone, and the resulting conic section made out of glass just in front of your very eyes! And in the wall (in the backgorund) a nice solid as well. Sapporo Central Railway Station. |
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| A sliced cone, and the resulting conic section made out of glass just in front of your very eyes! And in the wall (in the backgorund) a nice solid as well. Sapporo Central Railway Station. |