Poznań is a city on the Warta River in west-central Poland, in the Greater Poland region. It is best known for its renaissance Old Town and Ostrów Tumski Cathedral. Today, Poznań is an important cultural and business centre and one of Poland's most populous regions with many regional customs such as Saint John's Fair, traditional Saint Martin's croissants and a local dialect.
Poznań is the fifth-largest and one of the oldest cities in Poland. As of 2019, the city's population is 534,813, while the Poznań metropolitan area comprising Poznań County and several other communities is inhabited by over 1 million people. It is the historical capital of the Greater Poland region and is currently the administrative capital of the province called Greater Poland Voivodeship.
Poznań is a center of trade, sports, education, technology and tourism. It is an important academic site, with about 130,000 students and Adam Mickiewicz University, the third largest Polish university. Poznań is also the seat of the oldest Polish diocese, now being one of the most populous archdioceses in the country.