Amsa-dong Prehistoric Site

The Amsa-dong Prehistoric Site, also called Amsa-dong Prehistoric Settlement Site, is an archaeological site and open-air museum in Amsa-dong, Gangdong District, Seoul, South Korea. The site contains evidence of human habitation from at 3,000 to 4,000 years before the present. On July 26, 1979, the site was made a Historic Site of South Korea.
Around 4,000 B.C., people of the area lived inside huts with lowered floors called umjip. There is evidence of the consumption of cooked grain and fish by 3,000 B.C. Around 1,500 B.C., communities began transitioning into the Bronze Age and farming at scale.
Due to modern Seoul's significant urbanization, this site is the only known major archaeological site in Seoul where Stone Age materials have been found, although such materials have also been found in minor sites throughout the city, often through rescue archaeology.
The site is now partially open to the public, with museum exhibits and recreations of umjip.