Fascinating insight into the development/history of Krakow and its markets. Shows a lot of archaeological discoveries of old buildings, roads and graves. Very interactive too. So glad I did it, was really interesting. Even if the first parts don't excite you, there is a whole underground corridor of short clips that explain Krakow's broader history, right through until the 1980s. So it covers a lot of bases and is a rare glimpse into how life was like hundreds of years ago - you literally get to see it.