The article shows, on the basis of selected examples, modern activities aimed at presentation, in the public space of Kraków, of lost elements of urban heritage. It discusses the manners of commemorating and making historical urban forms legible (layout of streets and squares, development, defence structures, watercourses), which were liquidated and whose reconstruction is not planned. Five methods of activities were distinguished and discussed: 1. Placement of visual or tactile information; 2. Application of specific surfaces and elements of landscape architecture; 3. Introduction of specific solutions in designs of new buildings erected in the historical structure of the city; 4. Establishment of a generally accessible or partially accessible reserve; 5. Application of specific local names. The conducted analysis indicates that application of various methods is a beneficial phenomenon: it enriches the public space of a city, allows the society to become acquainted with lost heritage and provides the designers with possibilities of artistic creation in specific conditions.