This project involved planning, design, layout, and construction the observation route and environmental learning corner at Morigoshi, Kikuchi Environmental Factory Clean. "Guided by a single line, you will explore the story. Waste processing observation route" Guided by a single line, you can read explanations of the waste processing equipment visible through the observation window, peek at the equipment in operation 24 hours a day, and learn about the process of waste processing while taking quizzes. We concept design a sugoroku-like information space that eliminates the boundaries between the walls and floors and combines explanatory graphics, displays content, and sign graphics in a single line. "Compare two worlds, think, and realize. Environmental learning corner" We created a space that is divided into two at eye level: a world that reduces waste (light blue) and a world that does not reduce waste (achromatic color). We concept design displays that encourages people to think for themselves and raise awareness about how they should live with waste as individuals, comparing the two worlds on various scales, from the earth to the local area to daily life.