Theory, Methods, and Systematization: An Experimental Methodology for the 3D Virtual Reconstruction of Never Built or Lost Architecture -- Historical Construction Research based upon 3D digital documentation of the Ba-roque Palais im Grossen Garten in Dresden -- Potentials for Research in Urban History - Online Research Tool 4D Community Browser -- Data handling and data schemes: Metadata for 3D digital heritage models. In the search of a common ground -- Towards Querying Multimodal Annotations using Graphs -- The Accademia de lo Studio de l'Architettura - a Database project -- Machine Learning and Artificial Intelligence: Semi-automatic generation of historical urban 3D models at a larger scale using Structure-from-Motion, Neural Rendering and historical maps -- Visualization and Presentation: Digital Urban History Lab - Serious 3D in research, education and popularization of cultural heritage -- Colouring Cities: A Citizen Science Platform for Knowledge Production on the Building Stock - Potentials for Urban and Architectural History -- Reviving the Sounds of Sacral Environments: Personalized Real-Time Auralization and Visualization of Location-Based Virtual Acoustic Objects on Mobile Devices -- From archival sources to a 3D-visualization of baroque urban topography: Vienna, Neuer Markt, c. 1760 -- Education: The Nuremberg Stations of the Cross. Enriching on-site experiences of a historical pathway by the "FAU GeoExplorer" App -- Designing Learning Tasks and Scenarios on Digital History for a Research Lab for Pupils. Trends, first implications and perspectives -- Virtual experiences using digital technologies for South Tyrol heritage education -- Public health, artisanal activities, daily life in medieval Bologna: digital projects as teaching tools for urban history.