Collegium Maius is not only the oldest building of the Jagiellonian University, steeped in the history of Polish science and culture. It is also an amazing museum that allows us to go back in time and imagine what university life was like centuries ago. You can also see a clock playing here, the professor's garden or drink coffee in a charming cafe surrounded by 14th century walls.
https://maius.uj.edu.pl/en_GB/start