is situated in a lake region of forests and plains. There are 15 lakes inside the administrative bounds of the city (13 with areas greater than 1 ha). The overall area of lakes in Olsztyn is about 725 ha, which constitutes 8.25% of the total city area. Climate Olszytn has an oceanic climate (Köppen climate classification: Cfb) using the isotherm or a humid continental climate (Köppen climate classification: Dfb) using the isotherm. Administrative division Olsztyn is divided into 23 districts: There are many smaller districts: Jakubowo, Karolin, Kolonia Jaroty, Kortowo II, Łupstych, Niedźwiedź, Piękna Góra, Podlesie, Pozorty, Skarbówka Poszmanówka, Słoneczny Stok, Stare Kieźliny, Stare Miasto, Stare Zalbki, Stary Dwór, Track. These do not have council representative assemblies. Culture Theatres Stefan Jaracz Theatre (est. 1925) the host of International Theatre Festival DEMOLUDY Puppet Theatre Cinemas Helios Multikino Museums Museum of Warmia and Mazury (Muzeum Warmii i Mazur) – Olsztyn's largest museum. Gazeta Olsztyńska House (Dom "Gazety Olsztyńskiej") Museum of Nature (Muzeum Przyrody) Museum of Sports (Muzeum Sportu) Muzeum Nowoczesności Architecture The historic central district of Olsztyn is the Old Town (Stare Miasto), which contains various historic buildings and structures, including: the Gothic castle of Warmian Chapter, built during the 14th century, former home of Nicolaus Copernicus, now a museum Gothic St. James' Pro-cathedral with Gothic-Renaissance-Baroque interior Old Town Hall on the Market Square – built in the mid-14th century. Gazeta Olsztyńska House at the Targ Rybny ("Fish Market"), now a museum. the town walls and the High Gate (until the mid-19th century known as the Upper Gate). Our Lady Queen of Poland church Monument to Nicolaus Copernicus Park Zamkowy (Castle Park) Baroque Archpresbyter's Palace (Pałac Archiprezbitera) Gothic Revival Church of the Salvator Notable structures outside of the Old Town include: the New City Hall the astronomical observatory the , built in 1565 Neogothic Sacred Heart church, built during the years 1901–1902 Church of St. Lawrence in the Gutkowo district, built in the late 14th century Home Army and Stefan Jaracz monuments and the White Eagle Column the Railway Bridge over the River Łyna gorge near Artyleryjska and Wyzwolenia streets, built during the years 1872–1873 Main Post Office Warmian-Masurian Voivodeship office Instytut Północny im. Wojciecha Kętrzyńskiego ("Wojciech Kętrzyński Northern Institute") Park Centralny (Central Park) the Książnica Polska building with one of the oldest active passenger elevators in Poland and Europe FM- and TV-mast Olsztyn-Pieczewo – 360 metres high, since the collapse of