Kraków's most colourful church, and our personal favourite, thanks to the gorgeous Art Nouveau interiors by native son Stanisław Wyspiański, which nicely balance the organic and geometric with unique floral patterns. Wyspiański also made the eight stained-glass windows around 1895, including the controversial and iconic centrepiece, 'God the Father in the Act of Creation.' Dating back to the 13th century, St. Francis' Basilica was the first brick building in the city and is well worth popping in, even for those who could care less for looking at another church.