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 dayJ3373 : Nos 5-7 Brunswick Street, Belfast - June 2017(2) by Albert Bridge
Demolition works seems to have stopped leaving this gap and the remains of the building (left). The original Presbyterian Hostel building is on the right.
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.