I believe this is simple, yet crucial and time-worthy to know amongst ELLs.
As a traveler, I've experienced different culture/cultures across the world.
First off, culture is an uncountable noun.
Every time I'm going to use this word "culture", I've always been unsure whether it should be just "culture" (singular), or "cultures" (plural).
Come to think of it, you cannot count "culture", and grammar books say it too.
So, in the sentence above, can you say different culture specifically?
Confusion and annoyance:
- Different fruit/fruits?
- Different vegetable/vegetables
Please note that I've included "different" before a noun, which should usually be followed by a plural noun (for example "different books", "different computers").