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 daySJ2206 : A cycle tourist passes a narrowboat on the Montgomery Canal by Phil Champion
On the outskirts of Welshpool. The canal towpath between Newtown and Welshpool had recently been improved and now forms part of National Cycle Network Route 81. ...
Today's Photo of the dayUMV6281 : Mannheim: Wasserturm by Harald Sogl
Das Wahrzeichen von Mannheim.
Geograph Britain and Ireland, also has a slightly simplified site schools.geograph.org.uk intended for use within Schools.