<P> This list of tallest buildings in the world ranks skyscrapers by height . Only buildings with continuously occupiable floors are included, thus non-building structures, including towers, are not included . (See List of tallest buildings and structures .) </P> <P> The international non-profit organization Council on Tall Buildings and Urban Habitat (CTBUH) was formed in 1969 and announces the title of "The World's Tallest Building" and sets the standards by which buildings are measured . It maintains a list of the 100 tallest completed buildings in the world . The organization currently ranks Burj Khalifa in Dubai as the tallest at 828 m (2,717 ft). The CTBUH only recognizes buildings that are complete, however, and some buildings listed within these list articles are not considered complete by the CTBUH . </P> <P> In 1996, as a response to the dispute as to whether the Petronas Towers or the Sears Tower was taller, the council listed and ranked buildings in four categories: </P>

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