What if architecture became street art? This thesis explores alternate ways to see the city — and the invisible terrains that are hidden within cities — through the lens of "glitch" territories and fiction. These invisible cities are born from intuition and draw sustenance from theory — including the work of Roland Barthes and Italo Calvino. It follows photogrammetry protocols used in heritage documentation — gathering, processing, consolidation of data, underlined with manipulation of techniques on photography, photogrammetry, and writing, respectively. Consequently, this thesis argues on the role of authorial agency and subjectiveness of the reader, as it is inferred in Calvino`s literary production, by revisiting it with digital imagery. The fiction essays are figuratively told by Invisible Cities`s protagonist, Marco Polo, where he depicts Glitch-Visible Cities. There, he departs into a universe of sprayed canvas and pixels to unnest the hidden pluriverse virtues of Ottawa and its murals.