The "Buddhist Monuments in the Horyuji-Area" was the first World Heritage site to be registered in Japan, as it was recognized for its "Outstanding Universal Value" as the oldest wooden building in the world. However, it is not well known that these wooden buildings need to be repeatedly repaired to remain so long or that many people have been involved to sustain the temple. In addition it is not well known either that Japanese wooden buildings like Horyuji Temple expanded the registration criteria, which previously only focused on stone buildings. This article suggests some ideas to make World Heritage sites into teaching materials from the viewpoint of "Wooden Culture," which has passed on the tradition of wooden buildings in Japan. This analysis also suggests that World Heritage Education should become a universal and significant education practice, since it is strongly connected to Education for Sustainable Development.