The Postal Museum in Nagano Prefecture's Minamikiso Town is characterized by its black postbox and old-fashioned building. Inside, you can learn about the history of Japan's postal situation. Walking through the post town, you can see postal workers wearing traditional hanten jackets and hikigasa hats, and original postmarks are also a highlight. The museum in Tsukekawa, which opened in 1985, displays valuable materials from Meiji 4 (1871) to the present day, allowing you to learn about the historical background. It's a tourist spot that even travelers can enjoy with its deep content.