This is the 11929th most frequent Polish word.
kulturowo
"Culturally."
Here 'kulturowo' is used as an adverb to describe the diversity in terms of culture.
Polska jest kulturowo bardzo zróżnicowana.
Poland is culturally very diverse.
In this sentence, 'kulturowo' introduces a perspective focusing on cultural aspects.
Kulturowo, Francja ma wiele wspólnego z Włochami.
Culturally, France has much in common with Italy.
'Kulturowo' emphasizes the importance within a cultural context.