The Museum of the Zoological Institute of the Russian Academy of Sciences is the largest zoological museum in Russia and one of the largest in the world. Nearly 30 000 specimens of animals from all over the world are displayed in the Museum. The collection was started over 250 years ago, but has only been open to visitors since 1901. The Museum contains the collections of well-known Russian scientists such as Gmelin, Pallas, Przewalsky, Kozlov and others. Its collection has been increased dramatically in recent years due to numerous expeditions throughout Russia, to the Arctic circle, to Antarctica and to the tropics