1) Digital photography
Found on
https://www.crosswordclues.com/clue/historypin
Historypin is a digital, user-generated archive of historical photos, videos, audio recordings and personal recollections. Users are able to use the location and date of their content to `pin` it to Google Maps. Where Google Street View is available, users can overlay historical photographs and compare it with the contemporary location. (Street .....
Found on
http://en.wikipedia.org/wiki/Historypin
No exact match found.
