Answers

2014-10-12T21:17:13+05:30
BURJ KHALIFA IS THE WORLDS TALLEST BUILDING.
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2014-10-12T21:18:55+05:30
Burj khalifa in dubai is the tallest building in the world. its height is about 829.8 m which is 2722 ft
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when was it built
sir, the construction was started on 21st September 2004, and was opened on January 4th 2010.