With those historical sites, we could know more about the past and the civilization of human beings. Besides, it can give us a sense of belongings, feeling like we are a part of the history. In addition, it also gives us a sense of idendity, knowing who we are and how we come from. Moreover, it can unify the society because it can bring people with different ages and pesonalities together. Last but not least,It can pass on the culture to the next generation.