Dalian Natural History Museum is one of the four biggest natural history museums in China. It was built in 1907, and was registered in UNESCO. The new modern European-Style building is located in Heishijiao Seashore, in the southern tourist area of Dalian. Inside, there are more than 200,000 pieces of precious specimens. It features halobios. Among them, the black ridge whale keeps the world records. It weighs 66.7 tons with a 1.5-meter-long embryo whale inside, in addition, the specimen of twin embryos is especially rare. In the museum, there are 12 exhibition halls, including dinosaur hall, earth hall, wetland hall, fossils of west Liaoning Hall, etc.