important interchange in the area is the cloverleaf north of Bielsko-Biała where S1, DK1 and S52 meet. Voivodeship roads nr. 940 and 942 pass through the city. Rail transport Bielsko-Biała is connected by direct train services with the following large Polish cities (November 2014): Bydgoszcz, Gdańsk, Gdynia, Katowice, Kraków, Łódź, Olsztyn, Opole, Poznań, Szczecin, Toruń, Warszawa (Warsaw), Wrocław. Airports There are 3 international airports within the 90 km distance from Bielsko-Biała, all serving connections with major European cities: Katowice International Airport, Kraków John Paul II International Airport, Ostrava Leoš Janáček Airport. Sights Bielsko-Biała is known for its Art Nouveau architecture and is often referred to as Little Vienna . Sights include: The Bielsko-Biała Museum, housed in the castle of the Dukes of Cieszyn from 15th century, later Castle of the Sułkowski princes built in 1897 Ulica 11 Listopada ("November 11 Street"), the main pedestrian zone of the city center Plac Bolesława Chrobrego ("Bolesław the Brave Square"), the main square in the city center Frog House (Kamienica Pod Żabami), an Art Nouveau mansion The only statue of Martin Luther in Poland. built in 1888 BWA Bielsko-Biała Gallery of Art St. Nicholas Cathedral built in 1447 and rebuilt in 1909–1910 built in 1890 , the city's oldest church, built in the Middle Ages in Gothic style Jewish Cemetery, founded in 1849 Weaver's House Museum, Dom Tkacza, reconstructed workshop of a draper Museum of Technology and Textile Industry mountain located within the city borders and the Dębowiec ski slope Apart from being an attractive destination itself the city is a convenient base for hiking in Silesian Beskids and Żywiec Beskids as well as for skiing in one of the most popular Polish ski resorts Szczyrk (located from the city centre) and in a couple of smaller nearby ski resorts. Districts Aleksandrowice Biała Hałcnów Kamienica Komorowice Śląskie i Komorowice Krakowskie Leszczyny Lipnik Mikuszowice Śląskie and Mikuszowice Krakowskie Olszówka Dolna and Olszówka Górna Stare Bielsko Straconka Wapienica Education University of Bielsko-Biała Wyższa Szkoła Ekonomiczno-Humanistyczna Teacher Training College of Bielsko-Biała Politics The executive body of the gmina is the President (Mayor) of the City of Bielsko-Biała. This office was created in 1951 when Bielsko and Biała became one city. Previously the city of Bielsko was governed by a President while the city of Biała was governed by a burmistrz. The city is divided into five constituencies during the local elections. Bielsko-Biała constituency Senators from Bielsko-Biała constituency: