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 daySK5717 : River Soar west of Barrow upon Soar in Leicestershire by Roger Kidd
This is the River Soar, looking downstream (north-west) towards Loughborough and the River Trent. The Leicester - Derby/Nottingham railway is by the trees on the right. N Chadwick summarises:
Today's Photo of the dayTNT1290 : Einfahrt zum Bootshafen in Überlingen am Bodensee by Klaus G
Random photo (doesn't have a daily photo)WV4674 : Dixcart Bay and Hogsback Headland by Colin Smith
"Dixcart Bay - best near low tide when the sand is exposed, also the most easily accessible on the island. For shelter, try this one if the wind is northerly". www.sark.co.uk https://en.wikipedia.org/wiki/Sark
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.