More ancient wall paintings have been discovered as methods or techniques available to unearth ruins and tombs have become advanced, but it is a future issue as to how to protect the delicate wall paintings not exposed to outside air or humidity for a long time, from deterioration caused by molds and light and how to present them for public view.
古代の壁画は、遺跡や墳墓の発掘調査の進展と共に多く見つかるようになっているが、長年外気や湿気に触れなかった繊細な壁画はカビや光で痛む可能性があるため、どのように保護し、また観覧に供するかは今後の課題である。