Ancient state archives where important documents and historical records were kept securely.

Secure places used in ancient times for storing important state documents or articles; also written [[石室金匮|石室金匱|shi2 shi4 jin1 gui4]]

the caves and grottoes of Dunhuang, especially the Mogao Grottoes, famous for their Buddhist art and manuscripts

Safe places for storing important articles, such as historical archives or rare books.books; secure repositories.