地形から探る元寇防塁　微妙な起伏を歩いてたどる！

The Mongol Invasion Fortress continues along Hakata Bay in Fukuoka City. Looking at the coastline and contour lines from the Kamakura period, you can clearly see how it was created. As we follow the subtle undulations, we'll ask ourselves, "Why is it here?" ★Chiri Rider's Twitter (Follow now)   / chiri_rider   ★Question Box (For questions and requests that are not directly related to the video, please go here) https://peing.net/ja/chiri_rider