Related is the story of Soviet maps. The Soviets had engaged in a monumental effort to map the world and then during the collapse in one of the republics the classified stack of maps got in the hands of Westerners:
I own a couple of these maps covering the area I grew up in (Western Norway). In some respects, the Soviet general staff mapping is more detailed than the maps from the Norwegian mapping authority - they even showed a pile of wood in our back yard! (Presumably misidentified it as an outhouse)
An educated guess is they simply bought a set of the commercially available mapping, then compared it to satellite imagery and added their own points of interest.
I've flown out of 5 of them - SF, Oakland, San Jose, Palo Alto, San Carlos. You can't land a 747 on all of them but they're definitely airstrips. There might even be more than mapped.
1980s CIA album has map of central Moscow. On it, subway stations and embassies are marked (that's the expected), gas stations (okay) and also churches (what's weird).
Nothing more, just embassies and churches. Would like to hear a story here.
Baghdad's 2003 map has basically the same set of POI.
If it's a tourist map then probably so, but I assume CIA would like to see something more substantial on their map. They're not in for the sights are they?
Most of CIA's work is at the ground level. Stuff relevant for tourists is highly relevant in the field. (Meet this source next to the statue of St. Something, next to the kiosk across from the children's zoo entrance #3.)
Some are - they are absolutely everywhere in all cities I've lived in or visited, and yet I couldn't tell you the names of more than a couple. Do people really know the names of a significant portion of them?
https://www.sovietmaps.com/
Here is a longer article about it:
https://www.wired.com/2015/07/secret-cold-war-maps/
And also the map of San Francisco from the 80s:
http://i.imgur.com/SdmmFUd.jpg