This is the 11930th most frequent Polish word.
kulturowych
"Of cultural" or "cultural."
The word 'kulturowych' in this sentence is used as an adjective in the genitive plural form, describing the noun 'różnicach' (differences).
Rozmawialiśmy o różnicach kulturowych między naszymi krajami.
We talked about cultural differences between our countries.
Here, 'kulturowych' is also used as an adjective in the genitive plural form, describing 'tematów' (topics).
Książka ta porusza wiele tematów kulturowych.
This book touches on many cultural topics.
In this sentence, 'kulturowych' is an adjective again in the genitive plural form, modifying 'doświadczeń' (experiences).