Yoshinogari Historical National Government Park was established to preserve and utilize one of Japan’s excellent cultural heritage, Yoshinogari Ruins, which are the largest ancient ruins in existence in Japan. The park is located on the hill that reaches out from the Sefuri mountain chains lying in Kanzaki City and Yoshinogari-machi in Kanzaki County, Saga Pref. Presently the park covers a total area of 54 hectares. A number of remains of the Yayoi period (3rd century B.C. to the 3rd century A.D.) were excavated from the site and restored to show visitors what the society of the time was like. The remains prove that the community organized at this site had already grown to become the nucleus of the region, from which it is assumed that this site might have been the Kingdom of Yamataikoku mentioned in Gishi-wajin-den (an ancient Chinese chronicle mentioning Japan) in Toiden of the Records of Three Kingdoms. However whether the Yamataikoku was located in this region or in Yamato region in Nara Prefecture has been disputed for a long time among historians. A lot of historic and academically precious materials have been excavated from the site, among which are the bronze swords and the glass cylindrical jewels that were designated as Important Cultural Properties. Those materials are displayed in Yoshinogari Historic Restoration Exhibition Hall. You can also enjoy walking through green forests within the park.