The Amsa-dong Heritage Site in Gangdong-gu, Seoul is a cultural heritage park with Neolithic pit dwellings and remains. About ten pit dwellings stand outdoors, one of which can be entered, and the indoor exhibition hall displays comb-pattern pottery and recreations of life at the time. Visitors can handle grinding stones and mortars and assemble comb-pattern pottery, and there is a children's hands-on museum and a small library. The site is more crowded than usual during the annual Gangdong Prehistoric Culture Festival.