This compact treasure museum holds an exceptional collection of Buddhist art gathered from across Koya-san — serene statues, painted scrolls and intricate mandalas that span centuries of devotional craftsmanship. The quality of the pieces rivals major city museums, but the intimate scale and mountain setting make the viewing experience far more personal. It's an ideal complement to walking the temple grounds, offering close-up encounters with the artistic expression of the same faith you've been feeling in the cedars and stone.