Through documents, photographs and videos from that time, visitors can learn about the many businesses that Kobayashi Ichizo created, including not only railways and opera houses, but also Toho and Hankyu Department Store, his entry into politics as Minister of Commerce and Industry and President of the Reconstruction Agency, and his activities in Tokyo. Five of the museum's buildings are registered as tangible cultural properties by the country: his former residence, Gazoku Sanso; the chair-style tea room Sokuan, which he designed himself; the tea room Hainen, which is said to have been moved from a temple in Kyoto; and the main gate, Nagayamon Gate, and the wall.