So far I've managed to get about half of them, using reverse image searches, exiftool, google maps and streetview, google translate, wikipedia and a bit of guesswork.
I surprised myself by being able to find the ICAO code (the international airport ID) for this airport, it was actually one of the easier ones.
Can you find it? If you can, the rest of the puzzles are here https://challenge.bellingcat.com/
Edit: adding #BellingCatChallenge tag
