Interactive documentary “Pokłady pamięci” (“Deck of Memory”) is a project about the no longer existing coalmine called Gottwald, which twenty years ago was a dynamically developing mine. Recently Silesia’s largest shopping center has been built in the same place. The project consists of three parts, each of which tells a different story. The first one focuses on history, tells about the district, the parish, but primarily about the mine. The second part consists of stories of former miners who, while supporting their family traditions, worked below the surface. In this part of the project users can interact with the characters of the document by choosing questions to ask. The third part is a photo gallery presenting photographs made by PhotoDay project participants.