The Council on Tall Buildings and Urban Habitat (CTBUH) launched in 1969 at Lehigh University in Bethlehem, Pennsylvania, and lead resource for professionals globally and focus on the inception, design, construction, and operation for tall buildings and future cities. in addition, CTBUH is a non-profit organization that providing global standards for measuring tall building height and recognizes superior achievement in tall and urban building project over all the world based on the CTBUH awards program.