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 daySO4474 : Tree at Downton Castle by Fabian Musto
Situated south of Downton Castle is this ancient tree, where we had lunch after looking at Castle Bridge to the south.
Today's Photo of the dayUNE7959 : Pavillon am Muehlenteich by Oliver Koch
Bei einer Fahrradtour auf einer unbekannten Strecke entdeckter See mit idyllischen Pavillons.
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.