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 dayTQ1367 : Holly Blue butterfly on Green Alkanet, West Molesey by Stefan Czapski
April 30th was probably the sunniest day of April, 2012 - and frankly, there wasn't much competition, the month was the wettest April on record. I had seen very few butterflies in previous weeks (in March rather than April) so I was pleased to see my ...
Today's Photo of the dayUMV9241 : Eingangstor an der Raußmühle by Harald Sogl
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.