I have seen a one Page Map of the International Routes..Its pretty hard to digest, Lots of stopovers, ect..Looks kind of like a Super-hard NFL Play...lots of different colored lines going all over the place...Changes by Day of week ect..but you get get an idea by using the flight-trackers and enter a known hub like IND
(UPS) or ANC
(International Fuel stop)...Its amazing How many Airports are served each nite...Also the Truck Traffic feeding a Hub like IND
must be seen to be believed, Former Farmland around IND
as Warehouse city, you can GoogleEarth IND
and Look around Saves gas...just used one of the Trucks for reference..to the Huge Size of these places..That Town Used to be Called Plainfield, now FX
calls it Planefield.