A skyscraper is a tall, continuously habitable building of many floors, usually designed for office, commercial and residential use. There is no official definition or height above which a building may be classified as a skyscraper and at which height it may not be considered a high-rise anymore. For buildings above a height of 300 m (984 ft), the term Supertall can be used, skyscrapers reaching beyond 600 m (1,969 ft) are classified as Megatall