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 dayNG8635 : Ferry at North Strome by Roy Tait
With the loch side road to Strathcarron closed by a rock fall Highland Council hired the MV "Glenachulish" in January 2012 to temporarily re-establish the vehicle ferry crossing between Stromeferry and North Strome. This six-vehicle community owned ...
Today's Photo of the dayUMV7525 : Stein: Flur "Zieglers Loch" by Andreas Gmelin-Rewiako
Blick über die Flur "Zieglers Loch" zum Langenwald.
Random photo (doesn't have a daily photo)WV7048 : Fort Henry and outfall by Oliver Dixon
Fort Henry, one of the numerous 18th-19th century fortifications on Jersey stands behing the sewer outfall. A further fortification - this one dating from World War II - can be seen further along the bank.
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.