Isnt the new collectors community ingenious? Yours is the strangest but super best collection I ever heard of!
I would love to guess your travel bring's you to Graz š its not soooooo far away from Krakow, but its no capital.
I think there will be Warsau on your list, but my guess here goes with the thought having you in our Capital Vienna and the 2 nearest European capitals to Graz having a borderline to Austria
Vienna - Austria
Budapest - Hungary
Ljubljana - Slovenia
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