Saudi Arabia’s JEC Tower has reached another milestone, rising to 430 meters (1,410 feet) as construction continues on what is planned to become the world’s tallest skyscraper. About 570 meters (1,870 feet) remain before the building surpasses the 1-kilometer (3,280-foot) mark. Designed by Adrian Smith + Gordon Gill, JEC Tower—also known as Jeddah Economic Company Tower or Jeddah Tower—is expected to exceed the 828-meter (2,717-foot) Burj Khalifa, currently the world’s tallest building. Once completed, the skyscraper will have at least 157 floors and stand nearly twice the height of the tallest building in the United States, the 541-meter (1,776-foot) One World Trade Center. The tower will contain 5.7 million square feet (530,000 square meters) of floor space and require 59 elevators.