Getty thesaurus of geographic names on line Contains nearly 1 million place names representing approximately 900,000 places. Composed of names and other information contributed by several Getty projects, including the Bibliography of the History of Art (BHA), the Foundation for Documents of Architecture (FDA), the Getty Center Photo Study Collection (GCPS), and the Getty Information Institutes Vocabulary Program (VP). The TGN is the only available automated geographical resource that is hierarchical, global in scope, and targeted at researchers, catalogers, librarians, and archivists dealing with the history of art and architecture. The logical focus of a TGN record is the "place." Each place has attributes, including names, place types and coordinates. The places are arranged in hierarchies representing the current political and physical world.