The revamped National Museum of China opens its doors and shows off a priceless collection of historical artifacts AFTER four years of renovation work and an expansion to its floor space, the National Museum of China (NMC) reopened on March The revamped National Museum of China opens its doors and shows off a priceless collection of historical artifacts AFTER four years of renovation work and an expansion to its floor space, the National Museum of China (NMC) reopened on March