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Recommended for you
Recently popular
What's new
Popular categories
Car
number
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technology
vogue
Game
Games (tags)
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history
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amusement
physical education
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healthy
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tourism
Germanic Wall
Where is the second Great Wall of the World? What was the purpose of its construction? Why is it unknown now?
Germanic Wall
Gorgam Great Wall
Sassanid Persia
Northern nomads
White Huns
Gorgon
12-29
![Where is the second Great Wall of the World? What was the purpose of its construction? Why is it unknown now?[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)