Japanese National Treasures are significant cultural properties recognized for their historical, artistic, or scientific value. These treasures include a variety of items such as ancient artifacts, traditional crafts, and important architectural structures. The designation aims to preserve Japan's rich heritage and promote cultural understanding. The designation of National Treasures is managed by the Japanese government, specifically through the Agency for Cultural Affairs. Examples of National Treasures include the Hōryū-ji Temple, famous for its ancient wooden architecture, and the Shōsōin Repository, which houses valuable historical artifacts from the Nara period.