World's Tallest Building Keeps Growing And Growing And . . . . .

At 2,296 feet (700 meters) the Burj Dubai has surpassed not only the tallest skyscraper in the World, but also the tallest Antenna, and the tallest manmade structure - the Warsaw radio mast in Poland. And they are not done yet - The final height remains a secret, known only to a handful of designers.