tallest building in the world-tallest building in the world 2017
List of tallest buildings The 828-metre (2,717 ft) tall Burj Khalifa in Dubai has been the world's tallest building since 2008. The Burj Khalifa has been classified as Megatall . ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The 828-metre (2,717 ft) tall Burj Khalifa in Dubai has been the world's tallest building since 2008. The Burj Khalifa has been classified as Megatall . Ranking criteria and alternatives 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 l