Magai Head Works (<i>Magai toshuko</i>), aka Kisogawa Weir (<i>Kisogawa ozeki</i>) on the <a href="https://en.wikipedia.org/wiki/Kiso_River" class="extiw" title="en:Kiso River">Kiso River</a>, on the border of Aichi and Gifu Prefectures, Japan
<a href="//commons.wikimedia.org/wiki/User:Alpsdake" title="User:Alpsdake">Alpsdake</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>