Currently, the tallest building in the world is Dubai's 828-meter Burj Khalifa, but that probably won't be for much longer. China has already started construction on its 838-meter building called Sky City in Changsha located in central China. The Changsha-based construction company called the Broad Group claims that the building will be completed by April 2014, a build time of ten … [Read more...] about Sky City To Be World’s Tallest Building