Okayama Great Seto Bridge | From Honshu to Shikoku
The Great Seto Bridge is a series of six bridges that connect Honshu, the main island of Japan, to the five smaller islands of Shikoku. The bridge measures a total length of 8.1 miles and ranks as one of the world's longest two-tiered bridges. The bridge can take both highway traffic on the upper deck and railway on the lower deck. The bridge is also known for its great architectural design and aesthetics.