Natural History Museum of Los Angeles County
Triceratops mount in the Natural History Museum of Los Angeles County.
The Natural History Museum of Los Angeles County is the largest natural and historical museum in the western United States. Its collections include nearly 35 million specimens and artifacts and cover 4.5 billion years of history. This large collection is comprised not only of specimens for exhibition, but also of vast research collections housed on and offsite. The museum has three floors of permanent exhibits. Among the most popular are those devoted to animal habitats, dinosaurs, pre-Columbian cultures, the Ralph M. Parsons Discovery Center and Insect Zoo, and the new Nature Lab, which explores urban wildlife in Southern California. The museum's collections are strong in many fields, but the mineralogy and Pleistocene paleontology are the most esteemed, the latter thanks to the wealth of specimens collected from the famed La Brea Tar Pits. The museum also has almost 30 million specimens representing marine zoology. These include one of the largest collections of marine mammal remains in the world, housed in a warehouse off site.