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 dayNC1217 : The start of the River Kirkaig by Nigel Brown
The outflow from Fionn Loch where the River Kirkaig commences. Suilven can be seen in the distance.
Today's Photo of the dayTPT5762 : Fußgängerbereich von Garmisch-Partenkirchen by Klaus G
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.