This is the 6346th most frequent Korean word.
아시는
"아시는" means "knowing" or "who knows" in English, depending on the context.
In this sentence, "아시는" functions as a modifier derived from the verb "알다" (to know) in its polite form, describing the 'person who you know'.
아시는 분 중에는 음악을 좋아하시는 분이 많습니다.
Among the people you know, many like music.
Here, "아시는" also derives from "알다" in polite form, specifying the teacher whom 'I' know.
제가 아시는 선생님은 정말 친절하세요.
The teacher I know is really kind.
In this question, "아시는" is used with "곳" (place) to imply a place 'you know', emphasizing familiarity or recognition.