The definitions agree that culture is not genetically transmitted but learned. For yourself personally, or for someone known to you, or for any group you choose, say what you consider to be significant as cultural heritage and why. Culture is present, cultural heritage is therefore historical. That would imply that cultural heritage must have some history behind it, and that culture is something relatively new. I concurrently belong to different cultural groups from which I acquire cultural knowledge.
Cultural heritage is developed through experience.
It is not something that can easily be taught. One's bad past acts are history rather than heritage. So the Holocaust may be history to Germans but heritage to Jews. In sharing a common history, customs, belief, etc. Culture provides life with a sense of structure that people feel they can follow.