Nishinomiya Battery - Credit: Wikimedia Commons
The was a Bakumatsu period coastal artillery battery erected by the Tokugawa shogunate on the coast of Osaka Bay of what is now the Nishihato-cho neighborhood of the city of Nishinomiya, Hyōgo Prefecture in the Kansai region of Japan. Its ruins were designated a National Historic Site in 1922. Read more on Wikipedia
Source: en.wikipedia.org