Although it doesn’t look like much from the outside, the interior of St. Francis Basilica is absolutely worth popping in for, even if you could care less for looking at another church (trust us). Dating back to the 13th century, this was actually Kraków’s first brick building. At the end of the 19th century, resident artistic genius Stanisław Wyspiański - founder of Poland’s Art Nouveau movement, and subject to his own museum - was commissioned to renovate the main nave, and he did so with colourful floral patterns on the walls that deftly balance the organic and geometric. He also designed eight gorgeous stained glass windows, including the controversial, iconic and absolutely must-see centrepiece, 'God in the Act of Creation’ - arguably the greatest modern stained glass window in the world.

Another modern figure associated with St. Francis’ is Franciscan friar Maximillian Kolbe, who led his first services at this church. Arrested by the Nazis, Kolbe ended up in Auschwitz during World War II, where he volunteered to die in place of another man; he was sainted by Pope John Paul II in 1982.

St. Francis’ also has a ‘certified copy’ (whatever that means) of the Shroud of Turin, which is on display in a side chapel.