Sunshine City is a massive urban complex consisting of five buildings in the Ikebukuro district, one of Tokyo’s busiest commercial hubs. Containing multiple shopping malls, an aquarium, a planetarium, an indoor amusement park, an observatory, a hotel, and a whopping 60-story office building. It’s visited by over 30 million people every year. But very few of them have heard of—let alone visit—the Ancient Orient Museum, one of Sunshine City’s least-appreciated attractions. Located on the seventh floor of the Culture Center annex building, where there is far less traffic than inside…