As mentioned the inspiration for this idea came from an activity planned by Paul Salmons (then of the IWM, now of the HEDP).
The picture produced by Marshall Mateer was the initial stimulus, but it was the work of Sergey Larenkov that helped my ideas crystallize.
This image of Leningrad/St. Petersburg showed me how the past could be used to highlight the present, how it is part of the present.
More of his work can be found at : http://sergey-larenkov.livejournal.com/ which inspired others to copy his work, me being just one example.
It is interesting to note that sites such as Google’s http://www.historypin.com/ would not have become so interesting.

