
DUBAI - The world's tallest building, still under construction in the booming Gulf emirate of Dubai, has become the world's tallest free-standing structure, its developers said on Thursday. The Burj Dubai tower is now 555 metres (1,831.5 feet) tall and has surpassed the 553-metre- (1,824.9-feet) CN Tower in Toronto, Canada, which held the record for the world's tallest free-standing structure since 1976, developers Emaar Properties...