Also, we have a lot of so/too old megaliths that are too mysterious to explain, and now many people are doing close research! Among many, we have famous Kanayama megaliths.(金山巨石群) I cited a picture from one of those HP… and will post my quotation, to show you their endeavor for searching the mysteries in Japan. Lots of honest people are making efforts. We have to overcome all the barriers to get together!! Differences are not bad, but the chances to know each other!! We have to stand up, anyway…now.https://hidakanayama.com/mystery.html