The Al Faisaliyah Centre Is a commercial skyscraper and mixed-use complex located in the business district of Riyadh, Saudi Arabia. The 267-metre-high office tower, the centrepiece of the Foster + Partners development, it is notable for having been the first skyscraper built in Saudi Arabia, and for the monumental stained glass wall of its lobby, designed by architectural artist Brian Clarke in collaboration with Norman Foster. Presently the fourth tallest building in Saudi Arabia after the Kingdom Centre, Burj Rafal and Abraj Al Bait, the Center presently ranks as the 325 tallest building in the world
The tower weighs about 10,000 tons and the center of the tower is like a hollow tube representing an area of 26% of the area of each floor it passes through, while the internal structural walls such as those designated for elevators and service ladders add more strength and rigidity and the center of the tower carries a weight equivalent to 65% of the vertical load and resists all wind forces. The tower was designed to withstand a wind speed of 140 km / h. Also, the top of the tower is expected to tilt at about 450 mm (within three years of the wind) and move about 250 mm after about fifteen years of the influence of the wind, noting that this movement is within reasonable limits that are not felt by humans at all.