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 dayTQ7407 : Bexhill Old Town High Street, Bexhill. East Sussex by nick macneill
A superb set of weatherboarded houses more commonly associated with Kent or at least Wealden East Sussex.
Today's Photo of the dayUNU0997 : Möhringen: Bahnübergang am Lautlinger Weg by Andreas Gmelin-Rewiako
Geograph Britain and Ireland, also has a slightly simplified site schools.geograph.org.uk intended for use within Schools.