Emaar Properties Opens Burj Khalifa as the World's Tallest Building
已确认可信度 90%Guinness World Records[2] and The National both confirm the official opening ceremony took place on January 4, 2010.
Emaar Properties officially opened the 828-meter Burj Khalifa in Dubai, timed to the fifth anniversary of Sheikh Mohammed bin Rashid Al Maktoum's accession to power. The tower took the world's-tallest-building title from Taipei 101 by a record margin.
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