The basis for each city globulin is a photo of the respective city - a skyline, a market, a landmark, or another special feature that I like and show the following traits:

1. country code (ISO 3166 ALPHA-2) (https://www.nationsonline.org/oneworld/country_code_list.htm)

2. continent (I.O.C. classification)

3. capital city

4. population

5. rotation

6. at the moment, this parameter is still my little secret. I will reveal this at a later date.

You therefore have the option of collecting according to various criteria, e.g. by continent, country etc. or by rarity.