Museum

n. place where objects of value or significance (historical, scientific, or artistic) are kept and displayed to the public

A museum is a "permanent institution in the service of society and of its development, open to the public, which acquires, conserves, researches, communicates and exhibits, for purposes of study, education, enjoyment, the tangible and intangible evidence of people and their environment". [1]
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.museum is a generic top-level domain (gTLD) used exclusively by museums, museum associations, and individual members of the museum profession, as these groups are defined by the International Council of Museums (ICOM). In joint action with the J. Paul Getty Trust, ICOM established the Museum Domain Management Association (MuseDoma), headed by Cary Karp, for the purpose of submitting an application to ICANN for the creation of the new gTLD, and to operate it if the application was approved. The .museum domain was entered into the root of Domain Name System on 20 October 2001, and was the first sponsored top-level domain to be instituted through ICANN's action.
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Noun
1. a depository for collecting and displaying objects having scientific or historical or artistic value
(hypernym) depository, deposit, repository
(hyponym) Louvre, Louvre Museum

n. museum, place where objects of value or significance

n. museum, gallery