Passage: Chinese culture (simplified Chinese: 中华文化; traditional Chinese: 中華文化; pinyin: Zhōnghuá wénhuà) is one of the world's oldest cultures, originating thousands of years ago.  The area over which the culture prevails covers a large geographical region in East Asia and is extremely diverse and varying, with customs and traditions varying greatly between provinces, cities, and even towns as well.

Question: Chinese culture prevails in what part of Asia?
East Asia