There is a project here in North-Rhine Westphalen that could potentially do
something similar (they did want to do something with web applications and
so on) to document military monuments from the Prussian era up until the end
of WWII:
http://www.bbc.co.uk/news/uk-england-london-20637222
A friend of mine once argued that "airplane archaeology" isn't
"archaeology," but this kind of thing can help bring a landscape alive. In
Cologne, for example, the carpark at the new IKEA covers up an airfield that
used to launch Zeppelins against the UK, a huge network of bunkers
surrounding the city, the "Westwall," etc., all of which are tangible and
which might often have familial significance for people; and if we could
make more of the info hidden away in archives available to tourists, amateur
genealogists, "military history" buffs, etc., then maybe we can get more
interest going for "real" archaeology, too.
Anyway... I'll also have to look at this map in light of "Gravity's
Rainbow."