The adjective cultural comes from the noun "culture" but has several, subtly different meanings, depending on context. The chief meaning is anything having to do human intellectual or creative output.
The word cultural is often used as a synonym for "ethnic," as in, "cultural diversity," which means a variety of people. But it also means having to do with the arts and creativity. When you move, you'll want to move somewhere with a vibrant cultural life—lots of museums, libraries, and concert halls. In the middle is a term like "cultural anthropology," which is the study of a population's work, arts, lifestyles, and ways of interacting.