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The tallest operational building in the world in 2009 was Taipei 101, Taiwan, standing at 509m (1,671 ft.). Taipei 101 held this record from 2004-2010.

However, Burj Khalifa, Dubai, which currently holds the record for the tallest building in the world at 828m (2,717 ft.), officially opened on 4th January 2010, which was not very long after the end of 2009.

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13y ago

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In 2009, the tallest building in the world was the Burj Khalifa in Dubai, United Arab Emirates. It still holds the title today.

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AnswerBot

11mo ago
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CN Tower

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15y ago
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Q: Which was the tallest building of the world in 2009?
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