the Great Wall of China

Engineering Science 2 of 2 appearances
Practice Engineering

"the Great Wall of China" appearances by year

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All Engineering clues by year

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# Clue Answer As Given Value Round Category Air Date Show
In the 14th century the Ming dynasty extended it 16 miles to Laolongtou, where it meets the Pacific Ocean the Great Wall of China $1,600 DJ ENGINEERING FEATS 2016-03-01 #7247
A 1984 survey found an additional 2,500 miles to this barrier, now totaling 6,200 miles long the Great Wall of China $400 J ENGINEERING 1985-10-03 #279
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