This article investigates the market for skyscrapers in Manhattan from 1895 to 2004. Clark and Kingston (1930) have argued that extreme height is a result of profit maximization, while Helsley and Strange (2008) posit that skyscraper height can be caused, in part, by strategic interaction among builders. I provide a model for the market for building height and the number of completions, which are functions of the market fundamentals and the desire of builders to stand out in the skyline. I test this model using time series data. I find that skyscraper completions and average heights over the 20th century are consistent with profit maximization; the desire to add extra height to stand out does not appear to be a systematic determinant of building height.