This is Japan’s underwater highway

Faced with the challenge of connecting the cities of Kawasaki and Kisarazu, two urban centers located on both sides of Tokyo Bay, the Japanese authorities decided to use a viaduct, an underground canal… And, as a gift, build two artificial islands on the Pacific waters, one of which is 650 meters long and offers a huge parking and shopping area.

And that’s nothing!
The project is called Tokyo Bay Aqua-Line and although it was inaugurated a quarter of a century ago, it continues to surprise due to its dimensions, design, and technical solution with which it saves a bay more than 14 kilometers wide in which the waters reach 70 meters deep. Credits: AngoUniverso