Sangiran is an archaeological site on the Java island of Indonesia. Sangiran museum has an area of about 48 kilometers squares and it is located 15 kilometers north part of Surakarta town. It is on side of Solo River valley, administratively Sangiran is in Sragen and Karanganyar district. Sangiran was determined by the Minister of Education and Culture of Indonesia as a cultural heritage in 1977 and listed as a UNESCO world heritage site.
There was anthropologist Gustav Heinrich Ralph von Koenigswald who began research at the site in 1934. In subsequent years, the excavation found fossils of the first human ancestors, Pithecanthropus Erectus, or Java man. There are about 60 of them over other fossils of Meganthropus Palaeojavanicus that have been found at the site.
Sangiran museum is also presenting 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 the upright hominid site, 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 was found near the museum and it was a studied center 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.