'Rynek Główny' (meaning main square) is a medieval town square in which of these European cities?

The main square (Polish: 'Rynek Główny') of the Old Town of Kraków, Lesser Poland, is the principal urban space located at the center of the city. It dates back to the 13th century, and at 3.79 ha (9.4 acres) is the largest medieval town square in Europe. The Project for Public Spaces (PPS) lists the square as the best public space in Europe due to its lively street life, and it was a major factor in the inclusion of Kraków as one of the top off-the-beaten-path destinations in the world in 2016.

Kraków is the second-largest and one of the oldest cities in Poland. Situated on the Vistula River in Lesser Poland Voivodeship, the city dates back to the seventh century. Kraków was the official capital of Poland until 1596 and has traditionally been one of the leading centres of Polish academic, economic, cultural and artistic life. Cited as one of Europe's most beautiful cities,