Visiting the Liberty Bell requires a long queue outside and a security check. As the visitors flow to the end of the exhibition hall, it is the famous Liberty Bell. The clock, which was cast in London and about one meter high, is legendary despite its poor appearance. It was given to the United States by the British government. In order to show nobility, the clock was only used in major events. The first was the Declaration of Independence in 1776, the birth of the United States; the second bell in 1783, the victory of the War of Independence; when the third was struck, it was unexpected that it had been cracked. No one expected that such a noble national treasure would die without being struck, only three times. Because of this, its mysterious and legendary color eventually led to the long queue at the door every day.