1. Kraków is home to the Wawel Castle, a UNESCO World Heritage site, which is not only a stunning architectural marvel but also steeped in Polish history, serving as the residence of Polish kings for centuries. 2. The city has a vibrant underground culture, with the Rynek Underground museum located beneath the Main Market Square, showcasing the history of Kraków from the medieval period to the modern day through interactive exhibits. 3. Kraków is known for its annual Jewish Culture Festival, which celebrates Jewish heritage with concerts, workshops, and lectures, fostering dialogue and understanding of Jewish history and culture in Poland.