Between the Cloth Hall and St. Mary's Church, several meters deep, hides a real treasure trove of knowledge about Krakow's past. Walking along the underground tourist route, you will feel the atmosphere that once prevailed in the medieval market square and discover the links that connected the former Polish capital with the most important centers of trade and culture in medieval Europe. In this journey in time, the imagination is supported by, among other things, uncovered foundations of cottages from the turn of the 12th and 13th centuries, brick walls of ancient buildings, original objects excavated during excavations or reconstructions of craftsmen's workshops, as well as modern multimedia.