Saudi business mogul Prince al-Waleed bin Talal's Kingdom Holding company announced 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. Dubai's Emaar Properties real estate company will be in charge of developing the project...more