1. Burj Khalifa is a mega tall skyscraper and the tallest structure in the world, standing at 828 meters
2. Construction of Burj Khalifa began on 21st of September 2004 and the building officially opened on the 4th of January 2010
3. Building Burj Khalifa cost $ 1.5 billion
4. It is made up of more than 160 stories or floors
5. The building was named in honor of the ruler of Abu Dhabi and president of the United Arab Emirates, Khalifa bin Zayed Al Nahyan.
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