text: Tall buildings can be quite deceptive in aerial view, because they are photographed from an angle and parts of buildings may be obscured by shadows from other buildings. The aim is to map them at ground level because that eliminates the angle inaccuracy, but it is clear that at least one of the buildings is mapped by its roof without compensation for the angle. There is also a triangular protrusion on one of the buildings but it's deep in shadow and not possible to tell whether that's actually a building -- it could equally be a garden feature. It needs a site visit, but the grounds might not be public.