The area of Namba underground city, Osaka is ...
The area of 1 Namba underground city, Osaka is 45,000 square meters. That is ...
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almost the same as Tokyo dome (0.96 to be exact).
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2 times bigger than Red square (1.96 to be exact).
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36 times bigger than competition pool .
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107 times bigger than basketball court .
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1,216 times bigger than boxing ring .
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2,500 times bigger than studio apartment .
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721,154 times bigger than A4 paper .
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3,688,525 times bigger than 10,000 yen bill .
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81,818,182 times bigger than 500 yen coin .
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300,000,000 times bigger than thumb nail .
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20 times smaller than Coral Sea Islands .
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44 times smaller than Monaco .
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689 times smaller than Macau .
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1,319 times smaller than lake Furen in Japan .
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42,130 times smaller than Kagawa in Japan .
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742,398 times smaller than lake Tanganyika .
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7,948,821 times smaller than Germany .
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49,336,416 times smaller than Greenland .
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252,667,923 times smaller than Canada .
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9,224,056,393 times smaller than Russia .
