The Chinese national flag used in the founding ceremony of the People's Republic of China in 1949 exhibited in the new exhibition hall of National Museum.The new exhibition hall officially opened to the public on Thursday after a year of preparation. The construction of the new hall was completed last year and now houses over one million relics. The new addition makes the National Museum of China the world's largest, covering around 200,000 square meters. [Source:CRIENGLISH.com]