kkleiner writes "1,000 meters, or 3,280 feet. That's two-thirds of a mile. When the Kingdom Tower is built on the outskirts of Jeddah, Saudi Arabia it will not only become the tallest building in the world, it will shatter the old record. The total cost for the tower is approximately $1.2 billion. It features a Four Seasons hotel, Four Seasons serviced apartments, luxury condominiums, top class office space and the world's highest observatory."