Poznań is a city in west-central Poland with over 567,882 inhabitants (2006). Located on the Warta River, it is one of the oldest cities in Poland, making it an important historical centre and a vibrant centre of trade, industry, and education. Poznań is Poland's fifth largest city and fourth biggest industrial centre. It is also the administrative capital of the Greater Poland Voivodeship. http://pl.wikipedia.org/wiki/Pozna%C5%84