Beijing, February 21 (Youth.cn) - Terminal T5 of Xi’an Xianyang International Airport was officially put into operation on February 20th. The world’s first on-site heritage exhibition museum in an airport has been officially inaugurated. In Treasure Hall of the museum, the national class-A cultural relic “Qin Gongbo” is exhibited. Basic exhibition can be seen in Sifang Hall. The exhibits are mainly archaeological excavations during airport constructions of different periods. Photo/CFP