Heilongjiang Museum is located in Nangang District of Harbin City. It was built in 1906. The main building is a European Baroque building. It is the former site of Russian shopping mall and the first-class national protected building. Heilongjiang Museum, founded in 1923, is one of several comprehensive museums with a long history in China. The natural exhibition area of the museum is 1250 square meters. It consists of two parts: ancient animals and modern animals. There are more than 1200 specimens on display. In the pavilion opposite the Heilongjiang Museum, I.D. card is used for admission tickets, which are free of charge. In the exhibition hall of historical relics on the second floor, we can see that Tongxielong and Tongxielong were imperial objects of the early and middle Jin Dynasty. The dragon sits in a sitting position with his left forelimb raised and connected to the clouds between his left hind limbs. The right forelimb touches the ground and connects with the right hind limb. The treasure of Heilongjiang Museum and Town Hall, Tongxielong of Jin Dynasty, was unearthed in Heilongjiang Province in 1965. With the end of the Ice Age, mammoths and woolly rhinos disappeared forever. Inside the exhibition hall are the biographical profiles and photos of Grandpa Mao and Premier Zhou. The underground floor is a temporary exhibition hall. It introduces the historical relics of Erke Mountain and shows photos for the monthly special exhibition of Erke Mountain. Outside the exhibition hall, the two old men sat and talked to each other.