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 daySD8528 : The Singing Ringing Tree above Burnley by David Dixon
The 'Singing Ringing Tree' is a unique wind powered sound sculpture resembling a tree, which overlooks Burnley from its position high above the town on Crown Point. The site was once that of a rediffusion transmission station, complete with a run-down ...
Geograph Britain and Ireland, also has a slightly simplified site schools.geograph.org.uk intended for use within Schools.