Muroji Temple of the Shingon sect of Buddhism is situated on the mountainside of Mt. Muro. Koyasan in Wakayama Prefecture, a World Heritage site that is also the sacred site of the Shingon sect, once did not allow women to enter the mountain. In contrast, as Muroji has allowed women to enter, it has been called Nyonin-Koya (Female Koya). Kondo Hall, a national treasure, Hondo Hall, and a five-story pagoda stand in the precincts surrounded by trees. In spring, a profusion of pale pink rhododendrons creates a splendid sight.