The Museum für Naturkunde is a Berlin history and natural science museum. It is the largest museum of history and natural sciences in Germany. Founded in 1810, the museum houses a vast collection (over 30 million) of species divided into zoological, paleontological and mineralogical species. It is famous for hosting the installation of a skeleton of the tallest dinosaur in the world (12.72 meters high and 22.25 meters long). Other attractions that are particularly well known and appreciated in the collection are the polar bear Knut and an excellently preserved primordial bird fossil (Archeopteryx lithographica) which, showing the characteristics of both birds and lizards, helped to confirm the theory of Darwin argued that when new species develop, transient forms develop that show the characteristics of the old and new species. It also preserves a large fragment of meteorite and the largest piece of amber in the world. The museum also organizes regular temporary exhibitions.