This building originally called Burj Dubai, the tallest tower in the United Arab Emirates but it was named as Burj Khalifa in year 2011, & known as the tallest tower in the world since year 2008.
This is my entry to 
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From @roselle
This building originally called Burj Dubai, the tallest tower in the United Arab Emirates but it was named as Burj Khalifa in year 2011, & known as the tallest tower in the world since year 2008.
This is my entry to