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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3,161 times bigger than studio apartment .
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911,859 times bigger than A4 paper .
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4,663,934 times bigger than 10,000 yen bill .
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103,454,545 times bigger than 500 yen coin .
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51 times smaller than Monaco .
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91 times smaller than Ashmore and Cartier Islands .
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267 times smaller than Shibuya ward, Tokyo .
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2,073 times smaller than Jersey .
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91,919 times smaller than Aichi in Japan .
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986,541 times smaller than Bosnia-Herzegovina .
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5,548,301 times smaller than Poland .
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52,479,311 times smaller than Argentina .
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149,152,246 times smaller than Australia .
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2,863,403,212 times smaller than Russia .
