Poland's second-largest city is Lodz, which has four letters, and the largest city is Krakow, which has six letters. Lodz is located in central Poland and is the capital of the Lodz Voivodeship. It is an important industrial center and has a population of over 700, 000 people. Krakow is located in southern Poland and is one of the oldest cities in the country. It is a major cultural center and has a population of over 760, 000 people.