This paper studies the agglomeration of office skyscrapers across the USA, Europe the Middle East and Asia (198, 22, 34 and 294 buildings, respectively). The paper analyses the construction trends around the world, of skyscrapers 600ft (183 m) or more, focusing on construction periods, material use, location, economic, political conditions and agglomeration patterns. The initial results of the study suggest that agglomeration patterns across some newly founded skyscraper cities are not always attributed to the traditional economic factors. In addition, differentiations are evident between the types of structure (e.g. steel versus composite) and agglomeration timing and patterns.