The old hall is a European-style building, as a government building that passes through Hokkaido and Haoyu, belonging to modern relics, and the exhibition is also a historical change from the pioneering era to the modern era. Ancient Japan modeled the Tang Dynasty divided the country into "five seven roads", so Hokkaido this "road" unit is the only one in Japan, just like Tokyo, it should be noted that Kyoto is not "du", Kyoto and Osaka are "fu".