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 dayNJ4049 : Digging for Dinner by Anne Burgess
Sheep with their heads well down in the snow, digging to reach grass on which to graze. Knock Hill dominates the skyline in the distance.
Today's Photo of the dayUUT3137 : Uthausen Trafohaus by Heiko Kaiser
Trafohaus in Uthausen
Geograph Britain and Ireland, also has a slightly simplified site schools.geograph.org.uk intended for use within Schools.