The Kaiyou Midori Kan is a notable exhibition facility completed in 1975, designed by the renowned architectural firm Taibun Kumiai. This modernist structure represents an important example of 1970s Japanese institutional architecture. Built to showcase marine and environmental themes, the building demonstrates the design principles characteristic of its era, with functional spaces organized to facilitate public engagement and educational experiences. The facility exemplifies the period's approach to creating purposeful public buildings that balance aesthetic considerations with practical exhibition requirements.