This is the 550th most frequent Polish word.
kraków
Kraków: A city in southern Poland, historically significant and a former capital of the country.
Here, 'Kraków' is used as the proper noun referring to the city of Kraków in Poland.
W przyszłym miesiącu odwiedzę Kraków.
Next month, I will visit Kraków.
Here, 'Krakowa' is the genitive case of 'Kraków', showing possession or relation to Kraków.
W drodze do Zakopanego mijaliśmy piękny krajobraz Krakowa.
On the way to Zakopane, we passed the beautiful landscape of Kraków.
Here, 'Krakowa' is the locative case of 'Kraków', indicating the location of the activity.