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 daySW4837 : Scary wood near Amalveor by Bob Jones
A patch of woodland to the west of the track to Beagletodn is low-lying; the twisted boughs are covered with a green lichen, giving the area an eerie feel.
Today's Photo of the dayUNA1035 : Schloß Johannisburg in Aschaffenburg (Johannisburg castle in Aschaffenburg) by Thomas Krömer
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.