The area of Kawasaki underground city, Japan is ...
The area of 1 Kawasaki underground city, Japan is 56,900 square meters. That is ...
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almost the same as Gunkanjima, Japan (0.9 to be exact).
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8 times bigger than soccer field (7.97 to be exact).
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46 times bigger than competition pool .
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135 times bigger than basketball court .
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1,538 times bigger than boxing ring .
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13,617 times bigger than table tennis table .
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56,903 times bigger than A0 paper .
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911,859 times bigger than A4 paper .
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103,454,545 times bigger than 500 yen coin .
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16 times smaller than Coral Sea Islands .
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43 times smaller than Monaco .
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91 times smaller than Ashmore and Cartier Islands .
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763 times smaller than Yao city in Japan .
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2,823 times smaller than Liechtenstein .
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25,591 times smaller than Nikko city in Japan .
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728,731 times smaller than Switzerland .
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9,376,752 times smaller than Yemen .
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67,971,853 times smaller than India .
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981,851,147 times smaller than Russia .
