The 4th and 2nd floors are open to the public as a place for new days and exchanges. The Canada Garden of the corridor type when going up to the fourth floor with a long escalator. Landscapes ranging from the Atlantic coast of Canada to the Japan are represented by sculptures, waterfalls and gardens. There is a theater, a gallery and a research library on the second floor of the basement. Japan and Canada had started trade immediately after the Meiji Restoration, but the main export goods at that time were imported from green tea and Canada logs and coal. The migration to Canada seems to have been a succession of Nagano Manzo in 1877.