3rd class <a href="https://en.wikipedia.org/wiki/Triangulation_station" class="extiw" title="en:Triangulation station">triangulation point</a> in Shiroyama Park in Inagi, Tokyo, Japan.
<a href="//commons.wikimedia.org/wiki/User:Nikm" title="User:Nikm">Nikm</a>
<span class="int-own-work" lang="en">Own work</span>