The National Zoological Museum of China is located on the campus of the Chinese Academy of Sciences in Beijing in the Chaoyang District. It is the largest zoological museum in China. It has three floors of exhibits that surround a central exhibit area that contains a large hanging whale skeleton. The exhibits consists largely of mounted bird, mammal, and insects. The butterfly collection is quite large in particular. It is an institution of the State Council of China. It is headquartered in Beijing, with institutes all over the People's Republic of China. It has also created hundreds of commercial enterprises, Lenovo being one of them.