Koyasan Reihokan Museum is an art museum for the preservation and display of the art treasures of Kongobuji temples and its sub temples. It holds 21 National Treasures and 143 Important Cultural Properties and has a collection of over 50,000 items. When Kobo Daishi returned from China, he brought with him many Mandalas, Buddhist texts, paintings and ritual implements. Some of those can be seen today at the Reihokan Museum along with many important later works of Buddhist art. It is located between Garan Complex and Kongobuji Temple at the western part of Koyasan. Visiting Reihokan Museum is one of the ways you can enjoy Koyasan. Reihokan Museum is always filled with seasonal flowers and trees. Now is the season for enjoying beautiful rhododendrons and fresh green and red maple leaves.