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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911,859 times bigger than A4 paper .
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103,454,545 times bigger than 500 yen coin .
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711,250,000 times bigger than little fingernail .
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45 times smaller than Monaco .
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90 times smaller than Ashmore and Cartier Islands .
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493 times smaller than lake Hachirogata in Japan .
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9,650 times smaller than Guam .
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11,748 times smaller than Shunan city in Japan .
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250,635 times smaller than Bahamas .
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1,420,913 times smaller than Czech .
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51,843,587 times smaller than Argentina .
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221,351,280 times smaller than Canada .
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4,933,055,859 times smaller than Russia .
