Presentation by Nadine Oberste-Hetbleck (Department for Art History, University of Cologne) at the DH Colloquium of the University of Cologne, summer semester 2020. The topic of the talk is “ART | GALLERY GIS | COLOGNE. Ein digitales Mapping-Projekt auf dem Weg zur Deep Map.” Given the special circumstances of the COVID-19 pandemic, the colloquium 2020 takes place virtually. It is organized each summer semester by the Cologne Center for eHumanities (CCeH), the Institute for Digital Humanities (IDH) and the Department for Art History (KHI).