Spas in Budapest of these are still in use to this day. Budapest gained its reputation as a city of spas in the 1920s, following the first realization of the economic potential of the thermal waters in drawing in visitors. Indeed, in 1934 Budapest was officially ranked as a "City of Spas". Construction of the Király Baths started in 1565, and most of the present-day building dates from the Turkish period, including most notably the fine cupola-topped pool. The Rudas Baths are centrally placed – in the narrow strip of land between Gellért Hill and the River Danube – and also an outstanding
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