The Burj Khalifa[a] (known as the Burj Dubai before its inauguration) is a megatall skyscraper in Dubai, United Arab Emirates. Designed by Skidmore, Owings & Merrill, it is the world's tallest structure, with a total height of 829.8 m (2,722 ft, or just over half a mile) and a roof height (excluding the antenna, but including a 242.6 m spire.. The Burj Khalifa The Burj Khalifa is an iconic skyscraper located in the heart of Dubai, United Arab Emirates. It was completed in 2010 and stands as the tallest building in the world, with a height of 828 meters (2,716 feet). Designed by Adrian Smith of Skidmore, Owings & Merrill, the Burj Khalifa is a symbol of Dubai's modernity and ambition.
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5. Burj Khalifa Has More than 24,000 Windows The Burj Khalifa has more than 24,000 windows, totaling about 120,000 square meters of glass. As such, cleaning them is massive work. Reports show that it takes three to four months for 36 employees to completely clean the building's exterior.. The Burj Khalifa, located in Dubai, is the world's tallest building and features a remarkable facade with an array of windows. The exact number of windows that adorn the building is unknown, however estimates indicate that the Burj Khalifa has around 26,000 window openings. These windows range in size and shape, from generally large rectangular openings to smaller square and circular windows.