CNN CNN Newsroom With Deborah Feyerick June 22, 2014 22:33:00
Its crown jewel, the burj khalifa is not only the world's tallest building but a technological marvel. here is cnn's erin burnett with this week's city of tomorrow. >> reporter: at 2,716 feet, the burj khalifa is the tallest structure ever built on earth, towering over the city of dubai, it has the highest observation deck and the highest restaurant in the skyscraper and its owners say it has the highest swimming pool in the world. is there room for tall buildings like this that aren't just, you know, a landmark, something beautiful to look at, but that actually function and efficient and prof...
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