The Nagasaki Kaido Road connects the port of Nagasaki Prefecture, the only point open to overseas trade during Japan's period of isolation, with Kokura in Fukuoka Prefecture.

The Nagasaki Kaido was an important trade road from the 1630s that connected Nagasaki's port—the only one open to overseas trade in those days—to Kokura in Fukuoka Prefecture. Nicknamed the ...