Anraku-ji
... that the only extant octagonal pagoda in Japan is located at Anraku-ji?
... that the only extant octagonal pagoda <i id="mwCVU">(pictured)</i> in Japan is located at <b id="mwCVY"><a href="./Anraku-ji_(Ueda)" id="mwCVc" rel="mw:WikiLink" title="Anraku-ji (Ueda)">Anraku-ji</a></b>?