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Still technically the world ’ s tallest structure , the Burj Khalifa is expected to lose its decade-long record some time this year . However , the 829.8 metre tall megastructure , with its 163 floors and distinctive sail-like shape , remains for now the tallest man made structure in the world . The tower and the neighbourhoods that surround it are some of the most densely populated in Dubai and offer keen insight into the future of hyper-densified urban living . The exterior of the Burj Khalifa is clad in aluminum and textured stainless steel spandrel panels , designed to withstand Dubai ’ s extreme temperatures during the summer months by using a low-E glass to provide enhanced thermal insulation .