and the triple use of that sign to mark cultural property under special protection, including "refuges intended to shelter movable cultural property" (e.g.: Paintings, sculptures, texts) and "immovable cultural property of very great importance" (such as The Royal Observatory, Greenwich, London or The Taj Mahal, Agra, India) the special sign used to facilitate the identification of "works and installations containing dangerous forces" (dams, dikes and nuclear electrical generating stations), consisting of three bright orange circles placed on the same axis Of these symbols, the distinctive flag of the Roerich Pact was superseded by the distinctive marking of cultural property as defined by the Hague Convention of 1954. As all countries bound by the Washington Treaty of 1935 have ratified the convention of 1954, it is effectively out of use. See also Geneva Conventions Hague Conventions Rule of Law in Armed Conflicts Project (RULAC) Notes and references Law of war Signage