Kammon bridge, Shimonoseki.

This is the bridge that connects the main island of Japan, Honshu, with
the largest southerly island, Kyushu. It runs between Mojiko and
Shimonoseki, and carries cars only, being part of the National
expressway. There is a pedestrian tunnel and a train tunnel
close by. The bridge traverses the Kammon straights, which
carry a lot of local and overseas shipping, including the ferries
that run through the inland sea from Kitakyushu to Osaka.