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 dayNS8331 : Patterns and reflections in loch, Douglas Estate by Alan O'Dowd
The thaw over the last day or so has left unusual lines of ice or slush in the water.
Today's Photo of the dayUPV4480 : Kunst im Südstadtpark in Fürth by Günter 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.