I report exhibitions, lectures, and research results related to buried cultural properties as a part of museum activities conducted in the last ten years—aimed at deepening our understanding of these properties. I also explain the significance of cultural property protection and consider effective activities based on the results and issues. Special exhibitions at different museums, traveling exhibitions, and lectures on the protection of cultural properties will be introduced to students at Hiroshima University. The university held a symposium comparing local cultural properties of Early modern castle and castle town sites with the results of surveys of Japan’s Chugoku and Shikoku regions. Besides the materials in the museum's collection, we are promoting the results of studies and surveys related to the surrounding ruins in conjunction with exhibitions and lectures. We found an increased interest in the history of local culture and resource use among various age groups. Finally, each activity will be held several times in each region from different perspectives and widely publicized to effectively integrate content from the humanities and sciences.