Ōminesan-ji大峯山寺 - Credit: Wikimedia Commons
is an important temple of the Shugendō religion in Yoshino district, Nara prefecture, Japan. It is located at the peak of Mount Ōmine, or Sanjōgatake. According to tradition, it was founded by En no Ozunu, the founder of Shugendō, a form of mountain asceticism drawing from Buddhist and Shinto beliefs. Along with Kinpusen-ji Temple, it is considered the most important temple in Shugendō. Read more on Wikipedia
Source: en.wikipedia.org