Sangiran is archaeological site in Java island of Indonesia. The museum has area about 48 kilometres squares and it is located 15 kilometres north part of Surakarta town. It is on side of Solo River valley, administratively Sangiran is in Sragen and Karanganyar district. Sangiran determined by the Minister of Education and Culture of Indonesia as cultural heritage in 1977 and listed in UNESCO world heritage site.
There was anthropologist Gustav Heinrich Ralph von Koenigswald began research at the site in 1934. In subsequent years, the excavation found fossils of first human ancestors, Pithecanthropus Erectus, or Java man. There are about 60 of them over other fossils of Meganthropus Palaeojavanicus have been found at the site.
Sangiran museum is also presented in early human history since about 2 million years and 200.000 years ago and that was when was Pleistocene Pliocene. There are 13.086 hominid fossil collections and it is upright hominid sites, comprehensive in Asia. The visitor can also see the animal's fossils reinforced rear, aquatic fossils, fossils of marine plants and stone tools equipment.
The first dome what was found in Sangiran area was studied centre and it opened itself through the process of erosion to form depression. The depression, that found soil layers that contained information about life in ancient times.