This museum, located in the small municipality of Karuizawa, houses a large collection of the work of Japanese artist Hiroshi Senju, and is born from the collaboration of the rtist himself with Ryue Nishizawa. Senju’s interest in expressing in his work the synthesis between nature and culture inspires the conception of the project from the beginning. With over 60,000 plants, the changes in color are seen as part of the artistic value of this museum that aims to bring together art, nature and architecture.

The building is rounded off with two parallel surfaces that adapt to the relief of the terrain, softly and naturally spanning an unevenness of 3.5 meters between boundary walls. Several courtyards, closed with transparent glass with ultraviolet protection, bring light and vegetation inside. The museum is a single, free-flowing space where visitors can walk from the reception to the exhibition halls, and through the cafeteria and the auditorium. The interior has no specific directions, so the slope of the floor, the courtyards and the wall panels from which the works hang are the only elements to guide visitors through a large space to contemplate both the works and the surrounding plant life.