Agisoft Metashape is a stand-alone software product that performs photogrammetric processing of digital images and generates 3D spatial data to be used in GIS applications, cultural heritage documentation, and visual effects production as well as for indirect measurements of objects of various scales.
The Geograph British Isles project aims to collect geographically representative photographs and information for every square kilometre of Great Britain and Ireland, and you can be part of it.