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 dayNS4766 : Britannia Airways plane at Glasgow Airport by Elliott Simpson
My brother-in-law was one of the crew members leaving the plane
Today's Photo of the dayUPU9767 : Kranzberg Thalhausen - Spuren in den Feldern by gps-for-five
Geograph Britain and Ireland, also has a slightly simplified site schools.geograph.org.uk intended for use within Schools.