Osan-ri Prehistory Museum

Osan-ri Prehistory Museum in Yangyang, Gangwon, is the dedicated public museum on the Osan-ri Neolithic archaeological site — one of Korea's most important Neolithic sites, with about 6,000-year-old shell-mound and dwelling-site material that has substantially expanded what historians know about Korean Neolithic coastal life. The museum displays original artifacts (stone tools, pottery — including some of the earliest examples of Korean flat-bottomed pottery — shell ornaments, fish-bone material), life-size reconstruction dioramas of Neolithic Osan-ri life, and bilingual interpretation contextualizing the site within broader East Asian Neolithic record. The actual Osan-ri site sits adjacent to the museum, so the visit combines the museum's interpretive framing with a walk of the excavation-preserved outdoor site itself — this pairing is what makes the museum a stronger destination than the standard archaeology-museum format. Free entry. Allow about 90 minutes for museum + site. Pair with the broader Yangyang coastal attractions like Naksansa Temple (a major Silla-era temple 15 minutes south by car), Naksan Beach, and the nearby Yangyang Songi Mushroom Festival area for a Yangyang cultural-and-coast day. Access: about 30 minutes from Yangyang International Airport or from Naksan Bus Terminal.