Illyrian necropolis from the Iron Age. Museums Prijedor is home of the Museum of Kozara founded in 1953, which has a regional status. It is also home of the local national hero, Dr. Mladen Stojanovic. His house is today converted into the Stojanovic Memorial House. At Kozara National Park in the vicinity of Prijedor, there is the Mrakovica war museum. It includes the Second World War history photographs, guns and artillery used during the Battle of Kozara. Theatre Pozorište Prijedor was founded in 1953, though the tradition of theatre in Prijedor can be dated back to the 19th century. The theatre hosts different plays during the year, starring actors from within and outside of Bosnia and Herzegovina. Besides theatrical plays, the theatre hosts local city choirs that perform regularly. Religious sites Prijedor is known for being a multi religious society including a Catholic church, Eastern Orthodox churches and Mosques. Due to this Prijedor has a large number of mosques in the city centre, one of the oldest dating back to the 16th and 17th century. The most known is the City mosque "Carsijska dzamija" built in 1750 located the main street. The mosque includes a library and a school. Mostly all of Prijedor municipality's 33 mosques and the catholic cathedral that were damaged and destroyed are now rebuilt and renovated. Other sights is the Eastern Orthodox church "Crkva Svete Trojice" built in 1891 which is surrounded with a wall including a small church park. The catholic cathedral "Sv. Josip" built in 1898 is located in the northern part of the city centre close to the city theatre. Prijedor used to have a small Jewish population before WWII and the Bosnian war, but today there are no traces of the former Jewish population in the city. Culture Festivals The Day of Honey: Locally called "Dani meda". Trade-tourist event where local honey producers from the Prijedor area and farer away gather at the square in the main street to sell and demonstrate their products. Prijedor summer and river Festival: "Ljeto na sani". Includes a wide music program, sport activities and other happenings along the city river beach. Writers Gathering: Each year in September, cultural gathering "Writers gathering in Kozara", where works of literal art by local authors are being presented is taking place. Days of the Winter: This tourist event is held at the beginning of February in the mountain Kozara. It