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 dayNT2577 : Newhaven Harbour by Andrew Curtis
Natural deepwater fishing harbour made into a Royal Naval Dockyard by James IV for the construction of the world's largest ship, the Great Michael, in 1504-13. Village and harbour bought by the City of Edinburgh in 1510 to protect its port at Leith from ...
Today's Photo of the dayUMV7294 : Wirtschaftsweg auf der Grenze zwischen Laudenbach und Hemsbach 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.