My main problem with these photo galleries, is that they put me on uncontrolled journeys through history and techniques.
For instance I look at picture from a FW-189 and notice the finned spinners. Before I know I'm googling things as "finned spinner" and "Rippenhaube". Next I see a picture from an airfield with the text: unknown location" and I wonder: "Hey isn't this "Schellingwoude" and immediately I looking in my "Military airfields in the Netherlands" book", where my eye suddenly catches an unknown temporarily airfield in a region where I often cycle. And suddely I'm at google maps to see whether there are still some traces left......
Interesting and often well spend time, but sooo time consuming!
Cheers,
Huub