Ryōan-ji is a Zen temple located in northwest Kyoto, Japan. It belongs to the Myōshin-ji school of the Rinzai branch of Zen Buddhism. The Ryōan-ji garden is considered one of the finest surviving examples of kare-sansui, a refined type of Japanese Zen temple garden design generally featuring distinctive larger rock formations arranged amidst a sweep of smooth pebbles raked into linear patterns that facilitate meditation. The temple and its gardens are listed as one of the Historic Monuments of Ancient Kyoto, and as a UNESCO World Heritage Site.