Kraków (IPA: [ˈkrakuf]) is the chief city of Małopolskie Province in the south of Poland. At its core is a beautifully-preserved medieval town on the banks of the River Wisła or Vistula, and it's Poland's top tourist draw. The modern city, with a population of 760,000, stretches way beyond, including the communist-era "new town" of Nowa Huta.
In English the city was previously often spelled as "Cracow". But 21st century visitors have discovered it via budget airlines and travel booking sites that always call it "Krakow" so the older spelling isn't used here. The diacritical mark over the "o" changes the pronunciation from "o" (IPA: [ɔ]), to "u" (IPA: [u]).