Jeddah Tower, or Kingdom Tower is a skyscraper that is under construction. The tower is being built in Jeddah, a major port city on the Red Sea coast of Saudi Arabia. After its completion, Kingdom Tower will be the tallest building in the world, according to Construction Weekly. The consultants at Advanced Construction Technology Services state that the new tower will be approximately high, which is significantly taller than the current Guinness World Record holder, the Burj Khalifa. In contrast, the Burj Khalifa is only high.