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EntertainmentThe secret of the Aztec empire: Because of an eagle that drained the swamp, then the 'treasure' of a hundred years was revealed!
How great was the Aztec Empire and who was it?Beneath the Mexican capital is another ancient capital
Just a few meters below the modern capital of Mexico, a series of temples, palaces and artifacts from an ancient kingdom are being excavated.
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Can carp live 10 years in a tank without feeding?
Why do Italy and Switzerland have to redraw the border?
Japanese bullet train accident-free for 60 years
The world's most crowded apartment building: Can accommodate up to 30,000 people, the view inside is overwhelming
World's oldest wine jar contains cremated human bones
America catches strange signal from 1.3 billion light years away from Earth
Two black holes closest to Earth discovered, of a kind never seen before
Solar sails help spacecraft reach Mars in 26 days
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