<Tr> <Td_colspan="2"> www.burjkhalifa.ae </Td> </Tr> <Tr> <Th_colspan="2"> References </Th> </Tr> <P> The Burj Khalifa (Arabic: برج خليفة ‎, Arabic for "Khalifa Tower"; pronounced English: / ˈbɜːrdʒ kəˈliːfə /), known as the Burj Dubai prior to its inauguration in 2010, is a skyscraper in Dubai, United Arab Emirates . With a total height of 829.8 m (2,722 ft) and a roof height (excluding antenna) of 828 m (2,717 ft), the Burj Khalifa has been the tallest structure and building in the world since its topping out in late 2008 . </P> <P> Construction of the Burj Khalifa began in 2004, with the exterior completed five years later in 2009 . The primary structure is reinforced concrete . The building was opened in 2010 as part of a new development called Downtown Dubai . It is designed to be the centrepiece of large - scale, mixed - use development . The decision to construct the building is based on the government's decision to diversify from an oil - based economy, and for Dubai to gain international recognition . The building was originally named Burj Dubai but was renamed in honour of the ruler of Abu Dhabi and president of the United Arab Emirates, Khalifa bin Zayed Al Nahyan; Abu Dhabi and the UAE government lent Dubai money to pay its debts . The building broke numerous height records, including its designation as the tallest building in the world . </P>

The burj khalifa in dubai is the world tallest building