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2,200-year-old grave in China contains 'Red Princess of the Silk Road' whose teeth were painted with a toxic substance
Archaeologists in China have discovered a unique burial of a woman whose teeth had been painted with cinnabar, with a toxic ...
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A 30-foot-long glass bridge blends ancient wisdom with cutting-edge design
With more than 500 bridges crisscrossing the city of Philadelphia, they are an integral part of daily life. In a city defined ...