Sandstorm is shot from the top of the world's tallest skyscraper [video]

Photographer Gerald Donovan was not only on top of the Burj Khalifa building, the tallest skyscraper in the world at 823 meters, but he could see a huge and frightening sandstorm. The experience is not a pleasant one, but at least now you can know how much wind and sand make this kind of phenomenon. Check out the video below: