Poznań, the capital of Wielkopolska region, is a city on the Warta river in west-central Poland. Poznań is one of the oldest cities in Poland with town rights since 1253. It is best known for its renaissance Old Town and St. Peter and Paul Cathedral in Ostrów Tumski. There are many historic buildings and sights, mostly concentrated around the Old Town and other parts of the city centre, such as: the Town Hall, Royal Castle, National Museum, Grand Theatre or the Imperial Castle. There are many important cultural events organized in Poznań among them: the Henryk Wieniawski Violin Competition or Malta Theatre Festival and regional customs such as St. John’s Fair, and a traditional Day of St. Martin. In the center of Poznań there is Lake Malta with a number of sport and recreational attractions along the edge of the lake, including: an artificial ski slope, artificial ice ring, zoological garden or seasonal bikes rental – MaltaBike. The most popular art, business and the shopping center is the Old Brewery. The city hosts the Poznań International Fair (held for the first time in 1925) – the biggest industrial fair in Poland and one of the largest fairs in Europe. Poznań is also an important science and academic center. There are eight state universities or academies, among them: the Adam Mickiewicz University, Poznan University of Economics, Agricultural University of Poznan, University of Fine Arts, Academy of Music, Poznan University of Medical Sciences, and the Poznan University of Technology. In 2019 the Poznan University of Technology will celebrate its 100th anniversary. Founded in 1919 as the Higher School of Machinery it became the Poznan University of Technology in 1955.