NARUTO
It is a suspension bridge on the route connecting Kobe with Naruto. Below it, giant whirlpools are created by the ebb and flow of currents in particular during spring and autumn. These vortexes reach up to 20 meters.
SETO INLAND SEA
It is a series of double deck bridges connecting Okayama and Kagawa prefectures across a series of five small islands in the Seto Inland Sea. The complete route was opened in 1988.