"Council on Tall Buildings and Urban Habitat" . "Council on Tall Buildings and Urban Habitat's" . . . "height to architectural top" . . . . "CTBUH" . "CTBUH" . "Council on Tall Buildings and Urban Habitat#Awards" . . . . . . "Studies and reports on all aspects of tall buildings and urban design" . "Council on Tall Buildings and Urban Habitat#Publications" . "CTBUH's measurement standards" . "Council on Tall Buildings and Urban Habitat" . . "officially classified" . . "Council on Tall Buildings and Urban Habitat (CTBUH)" . . "CTBUH - Council on Tall Buildings and Urban Habitat" . . . . "Best Tall Building Worldwide" . . . . "The Skyscraper Center" . . . . "Over 450,000 individuals" . . . .