Question: where is the world tallest building the burj khalifa located
Answer: The Burj Khalifa ( Arabic : برج خليفة ‎ , Arabic for `` Khalifa Tower '' ; pronounced English : / ˈbɜːrdʒ kəˈliːfə / ) , known as the Burj Dubai before its inauguration , is a megatall skyscraper in Dubai , United Arab Emirates .