The Metropolitan Association of Upper Silesia (Polish: Górnośląski Związek Metropolitalny) or Upper Silesia Metroplex,[dead link][dead link][dead link][dead link][dead link] (Polish: Metropolia Górnośląska) Silesia Metroplex / Silesia Metroplex (Polish: Metropolia Silesia) is a union of 14 adjacent cities in the Polish province of Silesia.