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 dayNH7967 : Cromarty East Church by valenta
An early 17th Century church, it is category A listed. It is no longer in use as a church and is in the care of The Scottish Redundant Churches Trust. ...
Today's Photo of the dayTNT1290 : Einfahrt zum Bootshafen in Überlingen am Bodensee 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.