The article pres ents digital analysis techniques for the cityscape and structure of the city to examine multifaceted impact of tall buildings. Methods presented enable analysing visual impact (VIS), planning of protection for strategic vistas (VPS) and examining of impact on public space (several methods, including Negative-3D). The research was carried out under the 2TaLL Project: Application of 3D Virtual City Models in Urban Analyses of Tall Buildings, implemented in 2013-2016.