An interesting question and not so easy to answer. I tried to answer this question by writing words and phrases about me on a piece of paper. As a result I got a lot of phrases and words about my personal qualities, but only some phrases or words reflecting my cultural background or viewpoint. Maybe I did so, because I'm only affected by my own culture here in Finland. My first thought was that culture can be everything, it has no unambiguous definition.
Culture is everywhere.
For a fish culture is the water. A fish understands the meaning of water only when there's no water around him. Water means life to a fish. Culture or a culture consists of the ideas, customs, and art that are produced or shared by a particular society. A Culture is a particular society or civilization, especially one considered in relation to its ideas, its art, or its way of life.