Raina Ong Staff Writer,japan-guide.com Just one hour north of Tokyo by bullet train is Gunma Prefecture, the northwesternmost prefecture in Japan’s National Capital Region – a megalopolis consisting of Tokyo and its neighboring prefectures of Saitama, Kanagawa, Chiba, Yamanashi, Ibaraki, Tochigi and Gunma. Surrounded by mountains on almost all sides bar the southeast, Gunma Prefecture […]