Year: 2015 Keywords: Conservation Conservation Mural paintings Guidelines Recommendations Berlin Damp environment Subterranean environment Peintures murales Fresques Recommandations Lignes de conduite Berlin Environement humide Environement sous-terrain State Party: Democratic People's Republic of Korea Site: Complex of Koguryo Tombs Category: Miscellaneous Theme: Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred, Religious & Sacred Language: English(en)