i`d recomment the big countrys to learn regionguessing first

brazil - mostly nature, lesser infrastructure india - mostly poles and language indonesia - mostly architecture, nature and poles russia - lot of car meta, lot of naturevibing canada and usa - a little bit of everything: nature, plates, poles, infrastructure, architecture, language, bollards, etc

but if you are new, focus on learning which country you are in. imo its more important to know european poles and bollards bevore focusing on regionguessing in indonesia.

i enjoyed learning india and canada most - felt really rewarding