Trump World Tower is a residential skyscraper at 845 United Nations Plaza (First Avenue between 47th and 48th Streets) in Manhattan, New York City. Construction began in 1999 and concluded in 2001. Designed by the Greek architect Costas Kondylis, the building is 861 feet high and has 72 constructed floors (but lists 90 stories on elevator panels) with curtain wall facades of dark, bronze-tinted glass. The resulting large windows allow for extensive views of the East River and midtown Manhattan. The building is constructed with concrete to improve its wind resistance.