Territorial entitles and thus has influenced relations between them. In particular, these changes influenced the relations between the metropolis and its hinterland. Contemporary metropolis became a concentration of innovative activities that led to development of flows within world cities network. As a result its ties with regional surrounding, that offers mainly "simple" resources, has became relatively weaker. The article demonstrates these new processes by the empirical research of three Polish metropolises: Warsaw, Poznan and so called Triple-city (Gdansk-Gdynia-Sopot).