The Honshu-Shikoku Highway is a major expressway in Japan that connects the islands of Honshu and Shikoku. It spans approximately 1,000 kilometers and includes several bridges, the most notable being the Akashi Kaikyō Bridge, which is the longest suspension bridge in the world. This highway facilitates efficient transportation and trade between the two islands. Opened in stages from the 1980s to the 1990s, the highway plays a crucial role in Japan's infrastructure. It enhances accessibility for both residents and tourists, making travel between major cities like Osaka and Takamatsu more convenient. The highway also features scenic views of the surrounding landscapes.