Geograph is a concept and open source code for a online website to create a comprehensive collection of photographs capturing every part of given region.
Currently there are three active projects, shown below - including a photograph from each.
Today's Photo of the dayNN4057 : Loch Laidon by Mick Garratt
In the distance are the hills of the Beinn a' Chreachain / Beinn Achaladair group.
Today's Photo of the dayUMC0305 : Holzwickede, Quellteich der Emscher by Michael W
Die Emscher ist ein 83km rechter Nebenfluß des Rheins im Ruhrgebiet. https://de.wikipedia.org/wiki/Emscher
Geograph Britain and Ireland, also has a slightly simplified site schools.geograph.org.uk intended for use within Schools.
... and a sub-project just focusing on images in Ireland, www.geograph.ie.
Geograph Germany/Deutschland, also has a German/Deutsch language version at geo.hlipp.de.