From Pluralpedia, the collaborative plurality dictionary
museum (n.)
Applies toheadspaces

A museum is a place in headspace that serves as safekeeping for artifacts found by archaeologists for the purpose of education and keeping a historical record. While a museum brings to mind external world examples including fossils and art, museums can be just about anything in an internal world. These can be large environments such as parks, houses, etc. or as small as an office space or even a library depending on the nature/themes of the artifacts found.

While museums are often run by archivists and Archaeologists, anyone can be tasked to curate or otherwise look after a museum.