Topography it’s an ancient greek word τόπος topos, “PLACE” and -γραφία (-graphia, “WRITING”. In Revit there is in Massing & Site the command “Toposurface”, this command permit to draw the surface of the site.
Exist also differents plugin to import the toposurface from google earth or other sources.
I draw this Revit project to help a Master’s candidate (dott. Alessia Tavolante) for a Solar Analysis.