The Tallest Buildings in the World

Saudi business mogul Prince al-Waleed bin Talal’s Kingdom Holding company announced last week that it had signed an agreement for the construction of the world’s highest skyscraper. According to the company’s statement, the skyscraper will be 1,000 meters (3,280 feet) high and will be built in the city of Jeddah off the Red Sea.

The Sears Tower will be getting a ‘green’ upgrade that includes wind turbines, roof gardens and solar panels will join the pair of antennas atop the Sears Tower’s staggered rooftops, said building officials who announced Wednesday that the skyscraper would undergo a $350 million green renovation. The 5-year project would reduce the tower’s electricity use [...]