noun
history museum; historical archive
Refers to a building or facility that houses historical exhibits, documents, or artifacts. Often used in proper names of museums.
来月、新しい歴史館がオープンする。
A new history museum opens next month.
資料館 is an archive or resource center for documents and materials, often smaller and more specialized than a 歴史館.
Compound of 歴史 (history) and 館 (building, hall). A straightforward modern coinage for a history-focused facility.