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Major news stories of the decade: A look back

Photos Logo Photos | Slide 2 of 74

Jan. 4, 2010: Burj Khalifa is officially opened

With a height of 2,723 feet (829.8 meters), Burj Khalifa is the tallest building in the world. The skyscraper was officially opened with a grand firework display in Dubai, UAE.

© Chris Jackson/Getty Images; Chip Somodevilla/Getty Images
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