Tsushima Museum

The Tsushima Museum in Izuhara traces the island's history from the Jomon period through the Edo era, with particular focus on its role as a diplomatic and trade gateway between Japan and Korea. Highlights include early artifacts you can view from all sides in distinctive open cases, Korean pottery acquired through trade, and documents revealing the So family's practice of forging official seals to restore Japan-Korea diplomatic relations in the early 1600s. The second floor houses a research center holding around 80,000 documents from the So family archive, including a daily administrative diary spanning the entire Edo period.