Budapest service in and around Budapest, three lines of which are operated under the name HÉV. The river Danube flows through Budapest on its way from Germany to the Black Sea. The river is easily navigable and so Budapest historically has a major commercial port at Csepel District and at New Pest District also. The Pest side is also a famous port place with international shipping ports for cargo and for passenger ships. In the summer months, a scheduled hydrofoil service operates on the Danube connecting the city to Vienna. BKK (through the operator BKV) also provides public transport with boat
Budapest are currently 837 different monuments, which represent the most of the European artistic style. The classical and unique Hungarian Art Nouveau buildings are prominent. A lot of libraries have unique collections in Budapest, such as the National Széchenyi Library, which keeps historical relics from the age before the printing of books. The Metropolitan Szabó Ervin Library plays an important role in the general education of the capital's population. Other libraries: The Library of the Hungarian Academy of Sciences, Eötvös University Library, the Parliamentary Library, Library of the Hungarian Central Statistical Office and the National Library of Foreign Literature. In Budapest