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We noticed in Journal 2013 Issue I’s case study on Kingdom Tower, Jeddah, that a fair amount of the top of the building seemed to be an unoccupied spire. This prompted us to investigate the increasing trend towards extreme spires and other extensions of tall buildings that do not enclose usable space, and create a new term to describe this – Vanity Height, i.e., the distance between a skyscraper’s highest occupiable floor and its architectural top, as determined by CTBUH Height Criteria. — CTBUH